History Literature / AeonLegionLabyrinth

* CrapsaccharineWorld: Saturn City looks awesome at first glance. Everyone is immortal. There is no crime. People are nice and accepting of outsiders, mostly. However, the Edge of Time outside of Saturn City is constantly beset by escalating threats that are changing and evolving while Saturn City and the Aeon Legion itself remains stagnate. Each threat is only barely kept at bay thanks to Alya constantly finding [[ChosenOne Qadars]] who all end up sacrificing themselves to stop it.

* FantasticRecruitmentDrive: The Aevum Academy and the Aeon Legion's recruitment system usually offers [=MIAs=] a chance to join since history has already written them off as dead. Most jump at the opportunity to become immortal. Recruitment of native Saturnians is not a viable option since Saturn City's population growth is stagnate.
* FieldOfBlades: Kiaros's Garden near the Academy is this. It is also a memorial to the fallen.

* GivingRadioToTheRomans: Hanns mentions that stealing technology from the future would be worthless to them as they don't have the infrastructure to even maintain the stolen tech.

* HealingFactor. The shieldwatch can roll back time to when its user was not injured. Its main limitation is that if the user's spine or brain is damaged, then they [[LaserGuidedAmnesia will lose their memory once restored]]. But, it cannot bring the dead back to life.

* HiddenPurposeTest: Most of the tests and training sessions [[spoiler: Particularly the first day which requires the recruits to attempt all three tests even though they are told the tests are optional.]]

* NamedWeapons: Each Legionnaire's aeon edge is named and they also use that name as their alias.

* Really700YearsOld: Most of the native Saturnians are centuries old.

* YourWorstNightmare: The Trial of Fear in the Labyrinth. It struggles to scare Terra though since she hasn't experienced enough trauma for the trial to have anything to work with.

* YouGottaHaveBlueHair: Or silver in the Saturnians' case. They observe a cultural tradition of dyeing a lock of their hair silver for each lifetime they live. [[Really700YearsOld Most of them now have completely silver hair]].

The story is [[MohsScaleofScienceFictionHardness very soft on the Mohs Scale]]. There are no [[TemporalParadox paradoxes]] and the physics of time travel are glossed over. The story has a heavy emphasis on action scenes and reads more like a fantasy story than science fiction.

"Labyrinth" is the first book in the Aeon Legion series, a ScienceFiction TimeTravel series by J.P. Beaubien. Published on March 2016, the story follows [[UnlikelyHeroine Terra Mason, an ordinary girl about to graduate high school]], who discovers a hidden world of time travel after witnessing a battle between the [[TimePolice Aeon Legion]], an elite force that protects history, and a force of [[StupidJetpackHitler time traveling]] [[ThoseWackyNazis Nazis]] led by the [[AffablyEvil charismatic]] [[BigBad Hanns Speer]]. During the battle, Hanns's cunning almost allows him to steal [[MakeWrongWhatOnceWentRight a history book]], but Terra [[IncitingIncident works up enough courage to stop him from changing history]].

While Terra struggles to survive the Legion's training, Hanns prepares to enact a plan that could not only secure the [[GodwinsLawofTimeTravel Third Reich’s place in history]], but finally challenge the Aeon Legion's control of time. However, [[AntiVillain Hanns]] remains unaware of the Nazi Party's [[FinalSolution many atrocities]]. Both Terra and Hanns are equally determined to prove themselves a hero.

Impressed with Terra's bravery, [[TheMentor Alya Silverwind, one of the Aeon Legion's greatest heroines]], offers Terra an [[FantasticRecruitmentDrive opportunity]] [[CalltoAdventure to attend]] the Legion's [[AcademyofAdventure academy]]. There Terra learns how to use [[AppliedPhlebotinum technology]] that [[TimeMaster controls time itself]], but she has to master it before the academy's final test; [[DeadlyTrainingArea a deadly series of trials called the Labyrinth]]. Unfortunately, she has to compete with some of history's greatest soldiers and warriors in order to earn her place in the Legion.

* [[spoiler:EmpireWithADarkSecret]]: [[spoiler:Kairos claims that Saturn City is draining all of time for its own use.]]

* [[spoiler:ReforgedBlade]]: [[spoiler:Kiaros's old blade is reforged and given to Terra after she survives the Labyrinth.]]

* AllThereInTheManual: There is a lengthy index in the back of the book explaining many of the world's inside information as well as more details on the technology and history of the Aeon Legion universe.
* TheAlcatraz: Tartarus has twelve levels each housing more dangerous criminals than the last. Level ten holds things like [[GeniusLoci Manticores]] and no one knows what's on level twelve. Also functions as a SecretGovernmentWarehouse for recovered singularity technology.

* BootCampEpisode: Much of the first book.
* TheCaper: What Hanns seems to be planning.

* ClimbingTheCliffsOfInsanity: Terra is good at this.

* ComingOfAgeStory: For Terra.

* DeadlyTrainingArea: The Labyrinth which consists of 12 trials.
* DeathWorld: Any place a Manticore decides to live.

* TheDreaded: No one really wants to talk about the Faceless in great detail.

* FieldOfBlades: Kiaros's Garden near the Academy is this.

* GardenOfEvil: A Manticore ecology.
* GeniusLoci: A Manticore can control its ecosystem to a limited degree.
* GeographicFlexibility: Saturn City has a lot of different areas for a single city including a park, prison, numerous recreation areas, and an AcademyofAdventure.
* GetIntoJailFree: [[spoiler:Hanns's plan.]]

* GoodThingYouCanHeal: Since a Shieldwatch can restore most injuries by rolling back time, this allows the instructors to be extremely brutal to the recruits.

* HighTurnoverRate: The Aeon Legion training. The training starts with thousands and ends with around a hundred.
* ImmuneToFate: Those without a connection to fate are called nulls. [[Seers Sybil]] cannot see them very well. A null's influence on events is usually negligible.

* SocietyOfImmortals: Saturn City hosts such a society. Their demographics are stagnate to prevent overcrowding and what few new Saturnians are born are a result of a lottery with the rest of their limited growth coming from immigrants to serve in the Aeon Legion. Their culture also seems to consider ambition taboo.
* LectureAsExposition: Centurion Shani delivers a number of these.

* MisplacedWildlife: The Trial of Survival in the Labyrinth.
* MobileMaze: The Labyrinth.

* PlaceBeyondTime: The Edge of Time. Also where Saturn City is.

* SecretTest: The academy instructors love these. [[spoiler:The interrogation test where the recruits are tricked into thinking they were abducted and tortured by an enemy force all to see if they could resist interrogation and escape on their own.]]

* SuperReflexes: The shieldwatch can speed up the user's reflexes.
* TheSingularity: Most continua acchieve one of these and it usually destroys them. Also refers to an object called a Singularity that allows singularity technology to be produced. It is the source of AppliedPhlebotinum in the setting.

* TronLines: The fadelines that allow quick travel between areas.

* YouCantGoHomeAgain: Most of the recruits since they are technically [=MIA=] in their own times.

"Labyrinth" is the first book in the Aeon Legion series, a [[ScienceFiction science fiction]] [[TimeTravel time travel]] series by J.P. Beaubien. Published on March 2016, the story follows [[UnlikelyHeroine Terra Mason, an ordinary girl about to graduate high school]], who discovers a hidden world of time travel after witnessing a battle between the [[TimePolice Aeon Legion]], an elite force that protects history, and a force of [[StupidJetpackHitler time traveling]] [[ThoseWackyNazis Nazis]] led by the [[AffablyEvil charismatic]] [[BigBad Hanns Speer]]. During the battle, Hanns's cunning almost allows him to steal [[MakeWrongWhatOnceWentRight a history book]], but Terra [[IncitingIncident works up enough courage to stop him from changing history]].

Impressed with Terra's bravery, [[MentorArchetype Alya Silverwind, one of the Aeon Legion's greatest heroines]], offers Terra an [[FantasticRecruitmentDrive opportunity]] [[CalltoAdventure to attend]] the Legion's [[AcademyofAdventure academy]]. There Terra learns how to use [[AppliedPhlebotinum technology]] that [[TimeMaster controls time itself]], but she has to master it before the academy's final test; [[DeadlyTrainingArea a deadly series of trials called the Labyrinth]]. Unfortunately, she has to compete with some of history's greatest soldiers and warriors in order to earn her place in the Legion.

For a story about TimeTravel, this story is [[MohsScaleofScienceFictionHardness very soft on the Mohs Scale]]. There are no [[TemporalParadox paradoxes]] and the physics of time travel are glossed over. The story has a heavy emphasis on action scenes and reads more like a fantasy story than science fiction.

* AlternateHistory: Time has several of these called a Continuum that branch out at different points. Ours is called Continuum Lambda.
* AppliedPhlebotinum: Singularity Technology is this for the setting. Technology designed by singularity class AIs is barely understood within the setting itself. A number of singularity technologies are on display, but the most prominent is the ''shieldwatch''. The shieldwatch can [[TimeMaster control time]] and grants the user a number of powerful abilities. The only limitations seem to the shieldwatch's short range and a limited power supply. It also cannot directly affect other people who are not the user. For example, the user cannot force age people or trap them in stasis.
* ArcNumber: 12 being the number of numerals on clock face. A lot of things seem to come in 12s such as the number of zones in Saturn City, the number of Legendary Blades, the number of Trials in the Labyrinth, etc.

* CrapsaccharineWorld: Saturn City looks awesome at first glance. Everyone is immortal. There is no crime. People are nice and accepting of outsiders (generally). However, the Edge of Time outside of Saturn City is constantly beset by escalating threats that are changing and evolving while Saturn City and the Aeon Legion itself remains stagnate. Each threat is only barely kept at bay thanks to Alya constantly finding [[ChosenOne Qadars]] who all end up sacrificing themselves to stop it.
* ChosenOne: Alya seems to have a knack for finding these. In setting they are referred to as Qadar and have a special connection with fate. [[spoiler:Terra turns out to be a [[ImmuneToFate null]], or someone without a connection to fate.]]

* EnforcedTechnologyLevels: Singularity technology is highly advanced, but can only be understood by a Singularity AI.

* FantasticRecruitmentDrive: The Aevum Academy and the Aeon Legion's recruitment system usually offers [=MIAs=] a chance to join since history has already written them off as dead. Most jump at the opportunity to become immortal given they were likely abandoned in their home time anyway. Recruit native Saturnians is not a viable option since Saturn City's population growth is stagnate.

* GetIntoJailFree: Hanns's plan.

* PlotTailoredToTheParty: Many parts of the Labyrinth require recruits to cooperate in order to overcome certain trials.

* Really700YearsOld: Most of the native Saturnians.

* SeasonalBaggage: Terra's old life comes to an end during the fall. She enters into training at the onset of winter and the training reaches its darkest part during the dead of winter. The Academy's graduation occurs in Spring which is associated with rebirth.
* {{Seers}}: Called Sybil in setting and are marked by their strange headpieces that cover their eyes. They use precognition to foresee time traveler's attempts to alter time as well as threats to Saturn City and alert the Legion. They cannot see nulls very well since nulls are people without a strong connection to fate.

* ShiningCity: Saturn City. Self proclaimed greatest city in human history. Given that everyone that lives there is virtually immortal, eternally young, and basically has all the time they want to dedicate to partying, this may not be such a far fetched claim. Given the silvery white metal architecture, it is also a literal example of this trope as well.
* ShoutOut: A few, most to other time travel stories.
** “People have built time machines as far back as 1895 AD in your continuum’s dating system" This is the year [[Literature/TheTimeMachine H.G. Wells's The Time Machine]] was published.
** The Confederate soldier holding an assault rifle at the timeport and being told that he can't take it with him is a reference to [[Literature/TheGunsOfTheSouth The Guns of the South by Harry Turtledove]].
** It is heavily implied that the car for the driving course at the academy is a [[Franchise/BackToTheFuture Delorean]].
** Lycus berates a recruit for [[Literature/EndersGame playing video games at a school for battle]].
** The continament pod for Sero has the numeral DCLXXXII, or [[Wiki/SCPFoundation 682]]. Sero also has a number of similarities with SCP-682 and that both are intelligent and large monsters with [[HealingFactor regenerative abilities]].

* TransformationSequence: The Shieldwatch can do this interestingly enough. It takes only a second for a ring to pass around the user that can change both their age and clothing.

* TheUnmasquedWorld: Helcia is this as they are aware of time travel and police their own continuum. Overall the Aeon Legion wants to avoid this as it would make their job much harder.

* YouCantGoHomeAgain: Most of the recruits since they are technically MIA in their own times.

* AppliedPhlebotinum: Singularity Technology is this for the setting. Technology designed by singularity class AIs is barely understood within the setting itself. A number of singularity technologies are on display, but the most prominent is the ''shieldwatch''. The shieldwatch can [[TimeMaster control time]] and grants the user a number of powerful abilities:
** DeflectorShields that can freeze a tank round in mid air stasis.
** InfiniteSupplies via a MatterReplicator. A shieldwatch can easily create copies of most objects by moving areas around in time.
** HealingFactor. The shieldwatch can roll back time to when its user was not injured. Its main limitation is that if the user's spine or brain is damaged, then they [[LaserGuidedAmnesia will lose their memory once restored]]. It also cannot bring the dead back to life.
*** [[TheAgeless This same ability also renders the user biologically immortal as the user can keep restoring themselves to youthful state.]]
** [[TimeStandsStill The ability slow down, speed up, or stop time around the user.]]
** [[SuperReflexes The ability to speed up the user's reflexes to the point where bullets look slow.]]
** The only limitations seem to the shieldwatch's short range and a limited power supply. It also cannot directly affect other people who are not the user. For example, the user cannot force age people or trap them in stasis.

* ArcWords: "I have seen to the steel in you." is told to Terra several times.

* CrapsaccharineWorld: Saturn City looks awesome at first glance. Everyone is immortal. There is no crime. People are nice and accepting of outsiders (generally). However, the Edge of Time outside of Saturn City is constantly beset by escalating threats that are changing and evolving while Saturn City and the Aeon Legion itself remain stagnate. Each threat is only barely kept at bay thanks to Alya constantly finding [[ChosenOne Qadars]] who all end up sacrificing themselves to stop it.
* ChosenOne: Alya seems to have a knack for finding these, though Alya herself does not appear to buy into it that much. In setting they are referred to as Qadar and have a special connection with fate. [[spoiler:Subverted by Terra herself who later turns out to be an [[ImmuneToFate null]], or someone without a connection to fate.]]

* ClimbingTheCliffsOfInsanity: Terra is good at this. In fact she is one of the few recruits good at this.

* ComingOfAgeStory: For Terra. She leaves home for the first time and basically joins the time army.
* CoolSword: The Aeon Edge. It uses time to cut through pretty much anything. Terra compares cutting through steel feel like cutting through air. It also has a burst function that sends out a wave of energy powerful enough to rip through a tank. Strangely it requires ammo to use and has a stun mode.
* CrypticBackgroundReference: A lot of these especially of the Aeon Legion’s Rogues Gallery.

* DaysOfFuturePast: The Aeon Legion is considered the most advance military in human history and they use swords. Unlike many examples of this trope, the world of the Aeon Legion seems more reminiscent of Rome, Ancient Greece, or Carthage than a feudal time.

** [[spoiler:The Trial of Time which forces every recruit to complete the whole Labyrinth in under 144 hours.]]
** [[spoiler:The Trial of Keys where the recruit must quickly solve a logic puzzle, while being attacked by bloodthirsty prisoners from Tartarus.]]
** [[spoiler:The Trial of Survival where the recruit must survive in a DeathWorld while a powerful gunman hunts them down who is immune to a shieldwatch's power.]]
** [[spoiler:[[WarIsHell The Trial of War]] where the recruits must band together to fight not one, but two whole armies in an arctic wasteland.]]
** [[spoiler:The Trial of Blades where the recruits who just risked life and limb together must now turn on one another and duel each other.]]
** [[spoiler:The Trial of the Beast where recruits must team up again to fight a monstrous Manticore in a dark maze of iron and miasma.]]
** [[spoiler:The Trial of Storms where recruits must navigate hurricane winds while scaling a mountain prone to avalanches.]]
** [[spoiler:The Trial of Worth where each recruit must convince Lycus that they are [[OnlyTheWorthyMayPass worthy of joining]] the Aeon Legion.]]
** [[spoiler:The Trial of Fear where each recruits faces [[YourWorstNightmare their worst fear]].]]
** [[spoiler:The Trial of Truth where each recruits learns about their connection with fate.]]
** [[spoiler:The Final Trial that Terra never sees because she chooses to stop Hanns instead.]]

* [[spoiler:EmpireWithADarkSecret: Kairos claims that Saturn City is draining all of time for its own use.]]
* TheDreaded: Pretty much everyone agrees the Faceless were awful and no one really wants to talk about them in great detail. Amusingly, everyone seems to dismiss the Nazis as mostly harmless.

* TheFaceless: What the Faceless are. [[spoiler:Also Kairos once she comes back and the Captain who is later revealed as Lycus.]]

* FantasticRecruitmentDrive: The Aevum Academy and the Aeon Legion's recruitment system is an interesting example of this trope. Since Saturn City's population growth is stagnate because everyone is immortal, the Aeon Legion that serves as Saturn City's defense force has to recruit various soldiers and warriors throughout history in order to fill its ranks. However, to prevent messing with the flow of time, the Legion typically tries to recruit [=MIAs=] since history has already written them off as dead. Most jump at the opportunity to become immortal given they were likely abandoned in their home time anyway.

* FishOutOfTemporalWater: Almost all of the recruits are [=MIAs=] from various points in history.

* GeographicFlexibility: Saturn City has a lot of different areas for a single city including a park, prison, numerous recreation areas, and an [[AcademyofAdventure Academy of Adventure]].

* GreatOffscreenWar: The Legion has had several of these.
** The First Temporal War against the a people called the Kalians who used advanced energy weapons and conventional warfare.
** The Faceless War fought against monsters called the Faceless. It was the one war the Aeon Legion almost lost.

* HiddenPurposeTest: Most of the tests and training sessions [[spoiler: Particularly the first day which requires the recruits to attempt all three tests while saying they are optional.]]
* HighTurnoverRate: The Aeon Legion training.

* KilledToUpholdTheMasquerade: Adverted as the Aeon Legion can erase people's memories. Killing them would also risk messing up Time since it would remove their descendents.
* LectureAsExposition: Centurion Shani deliverers a number of these.

** Silverwind, wielded by Alya. Alya is shown to easily be a match for an entire platoon of soldiers from the 40s.
** Orion. His aeon edge is never drawn nor described, but someone did claim that "Orion cultivated his own garden of corpses."
** Kairos. Considered to be the greatest of the Legendary Blades, but vanished after defeating the Faceless. She left her blade behind before Orion planted it in Kairos's Garden to slowly rust. [[spoiler:She returns by the end of the book and vows to destroy Saturn City. However, Terra is given Kairos's old blade reforged.]]
** Cerberus, wielded by Lycus. The three cored blade. Its burst is show to be more powerful than a normal aeon edge.

* OurTimeTravelIsDifferent: Seems to be a variant of wormhole time travel. In this case a shieldwatch moves the user into the Edge of Time where all time overlaps. From there they can move to another location in the Edge of Time which will shift their position when they return to normal time.
** Hanns's time machine seems to work by bridging both time and space. A legionnaire comments that this is unusual for time travel machines.
* PerfectHealth: Justified since the Shieldwatches restore their user to a healthy state.

* PleasurePlanet: Saturn City has a massive industrial and research zone, but none of the citizens seem to care about it spending most of their time partying instead.
* PlotTailoredToTheParty: Many parts of the Labyrinth require recruits to cooperate in order to overcome certain Trials.

* [[spoiler:ReforgedBlade: Kiaros's old blade is reforged and given to Terra after she survives the Labyrinth.]]
* TheReveal: A few of these in the first book.
** [[spoiler:The mysterious black clad Legionnaire that kills Lycus is Kairos, the former savior of the city.]]
** [[spoiler:The torture and interrogation the Tirones is all staged by the Academy staff to test their resolve.]]
* RoguesGallery: The Aeon Legion has a few.
** The Singularity Thief is known to steal singularity technology from the Legion. [[spoiler:He also helps Hanns break into the Archives.]]
** [[BugWar The Manticores]], hyper evolving monsters who turn their homes into [[DeathWorld death worlds]], nearly overran time at one point in the Legion's history.
** The Kalians were a post time nation that challenged the Legion for control over time during an event called the First Temporal War.
** The Faceless are mentioned, but never described and they even put Legendary Blades on edge.

* ShinyLookingSpaceships: While technically timeships, most of everything in Saturn City is this.

* TheSingularity: Most continua have one of these and it usually destroys them. Also refers to an object called a Singularity that allows singularity technology to be produced. Pretty much stated to the be the source of AppliedPhlebotinum in the setting.

* TimeCrash: So bad that Saturnians use it as a curse word.
* TimeTravel: Present, but not really explored in the first book. Seems to operate on [[TimeyWimeyBall Timey Wimey]] rules.

* TrainingFromHell: The academy training program. Because of the [[GoodThingYouCanHeal shieldwatch's healing power]] the instructors can be as brutal as they want. There is no safety gear, no rules, and no hesitation as anyone who holds back is told to quit. Recruits can quit at any time, but they have to give up their shieldwatch and wait until next year for another attempt. The training program begins with a few thousand recruits and ends with less than one hundred.

* TronLines: The Fadelines that allow quick travel between areas.

* YouCantGoHomeAgain: Most of the Tirones since they are technically MIA in their own times.
* YouGottaHaveBlueHair: Or silver in the Saturnians' case. They observe a cultural tradition of dying a lock of their hair silver for each lifetime they live. [[Really700YearsOld Most of them now have completely silver hair]].

Has a character sheet ''[[Characters/AeonLegionLabyrinth here]]''.

*** [[TheAgeless This same ability also renders the user biologically immortal as the user can keep restoring themselves to youthful state.]]

* DeadlyTrainingArea: The Labyrinth which consists of 12 trials.

** [[spoiler:The Trial of Worth where each recruit must convince Lycus that they are [[OnlyTheWorthyMayPass worthy of joining]] the Aeon Legion.]]

Impressed with Terra's bravery, [[MentorArchetype Alya Silverwind, one of the Aeon Legion's greatest heroines]], offers Terra an [[FantasticRecruitmentDrive opportunity]] [[CalltoAdventure to attend]] the Legion's [[AcademyofAdventure academy]]. There Terra learns how to use [[AppliedPhlebotinum technology that controls time itself]], but she has to master it before the academy's final test; [[FinalExamFinale a deadly series of trials called the Labyrinth]]. Unfortunately, she has to compete with some of history's greatest soldiers and warriors in order to earn her place in the Legion.

Unlike a lot of time travel stories, this one is [[MohsScaleofScienceFictionHardness pretty light on the actual time travel aspect]] instead focusing on [[strike: the characters and story]] the action scenes. There are no [[TemporalParadox paradoxes]] and the physics of time travel are glossed over. The story has a heavy emphasis on action scenes and reads more like a fantasy story than science fiction.

Has a character sheet ''Characters/AeonLegionLabyrinth''

* AppliedPhlebotinum: Singularity Technology is this for the setting. Technology designed by singularity class AIs is barely understood within the setting itself. A number of singularity technologies are on display, but the most prominent is the ''shieldwatch''. The shieldwatchcan control time and grants the user a number of abilities:

*** [[TheAgeless This same ability also renders the user biologically immortal.]]

** The only limitations seem to be range and a limited power supply.

* ChosenOne: Alya seems to have a knack for finding these, though Alya herself does not appear to buy into it that much. In setting they are referred to as Qadar and have a special connection with fate. [[spoiler:Somewhat subverted by Terra herself who later turns out to be a null, or someone without a connection to fate.]]

* ColdBloodedTorture: When the Tirones are captured and interrogated. [[spoiler:Turns out it was all a Secret Test.]]
* ComingOfAgeStory
* CoolSword: The Aeon Edge. It uses time to cut through pretty much anything. Terra compares cutting through steel feel like cutting through air. It also has a burst function that can rip through a tank. Strangely it requires ammo to use.

* DuelsDecideEverything: A Trial of Blades is used to settle differences between Legionnaires.

* FinalExamFinale: The Labyrinth, a deadly series of 12 trials. [[spoiler:And the Legion throws everything from condemned prisoners to hyper evolved monsters at the recruits. The recruits even have to fight two entire armies only to find that they have to fight their fellow recruits in the very next trial.]]

* ImmortalLifeIsCheap: Since a Shieldwatch can restore most injuries(healing factor), this allows the instructors to be extremely brutal to the recruits.

* LectureAsExposition: Centurion Shani deliverers a number of these

* PlotTailoredToTheParty: Many parts of the Labyrinth.
* PowerGlows: The Temporal Singularity does this. Also the edge of the Aeon Edge blades.

* [[spoiler:ReforgedBlade: Kiaros's old blade that Terra earns after surviving the Labyrinth.]]

** The Singularity Thief is known to steal singularity technology from the Legion. [[spoiler:he also helps Hanns break into the Archives.]]

* SchizoTech

* Seers: Called Sybil in setting and are marked by their strange headpieces that cover their eyes. They use precognition to foresee time traveler's attempts to alter time as well as threats to Saturn City and alert the Legion. They cannot see nulls very well since nulls are people without a strong connection to fate.
* SecretTest: [[spoiler:The interrogation test where the recruits are tricked into thinking they were abducted and tortured by an enemy force all to see if they could resist interrogation and escape on their own.]]
* SetSwordsToStun: The Aeon Edge has a non lethal setting that freezes anything it touches into a stasis field. Justified in that they often don't want to kill temporal criminals who may need to live on in their own times.

* SuperDetailedFightNarration
* SwordOverHead: [[spoiler:Terra almost kills Hans, but can't force herself to do it.]]
* TechnologyPorn: Saturn City seems made of the stuff.
* TheAlcatraz: Tartarus has twelve levels each housing more dangerous criminals than the last. Level ten holds things like Manticores(genus loci) and no one knows what's on level twelve. Also functions as a Secret Government Warehouse for recovered singularity technology.
* TheCaper: What Hans seems to be planning.
* TheDreaded: Pretty much everyone agrees the Faceless were awful and no one really wants to talk about them in great detail. Amusingly, everyone seems to dismiss the Nazis as mostly harmless.
* TheFaceless: What the Faceless are. [[spoiler:Also Kairos once she comes back and the Captain who is later revealed as Lycus.]]
* TheReveal: A few of these in the first book.
** [[spoiler:The mysterious black clad Legionnaire that kills Lycus is Kairos, the former savior of the city.]]
** [[spoiler:The torture and interrogation the Tirones is all staged by the Academy staff to test their resolve.]]
* TheSingularity: Most Continua have one of these and it usually destroys them. Also refers to an object called a Singularity that allows Singularity Technology to be produced. Pretty much stated to the be the source of [[AppliedPhlebotinum Applied Phlebotinum]] in the setting.
* TheUnmasquedWorld: Helcia is this as they are aware of time travel and police their own continuum. Overall the Aeon Legion wants to avoid this as it would make their job much harder.

* TrainingFromHell:

* FantasticRecruitmentDrive: The Aevum Academy and the Aeon Legion's recruitment system is an interesting example of this trope. Since Saturn City's population growth is stagnate because everyone is immortal, the Aeon Legion that serves as Saturn City's defense force has to recruit various soldiers and warriors throughout history in order to fill its ranks. However, to prevent messing with the flow of time, the Legion typically tries to recruit M.I.As since history has already written them off as dead. Most jump at the opportunity to become immortal given they were likely abandoned in their home time anyway.

* FishOutOfTemporalWater: Almost all of the recruits are M.I.As from various points in history.

* PlaceBeyondTime: The Edge. Also where Saturn City is.

** The Manticores, hyper evolving monsters who turn their homes into death worlds, nearly overran time at one point in the Legion's history.