History FanFic / TheArithmancer

* SuperWindowJump: During her duel with Bellatrix, Hermione out of a window.

->'''Cedric:''' Alright, cool it, you two. She's a first year girl who just happens to be better at Arithmancy than...anyone Professor Vector has ever seen.

* BadassBookworm: In this AlternateUniverse, Arithmancers tend to be this.

* {{Determinator}}: Oh, Hermione, for sure. In the twenty-four hour span around the Battle of Hogwarts, she [[spoiler:visits Somerset to destroy the Horcrux in Hufflepuff's Cup, duels several Death Eaters and shoots Rookwood, faces Voldemort, goes to Hogwarts to prepare for battle, plans and conducts a ritual to kill Voldemort once and for all, gets chased by Bellatrix Lestrange for an hour until sunrise such that her misfortune price from the ritual wears off, and fights Bellatrix in a duel intense enough to ''take down the Astronomy Tower and render Hogwarts Castle uninhabitable'' and ends the duel with killing Bellatrix.]]

* NarrativeProfanityFilter:
** The fanfic makes liberal use of this, with many instances of characters cursing without descriptions of what they said. For example, in ''Lady Archimedes'' Chapter 61:

* OminousAdversarialAmusement: [[spoiler:Barty Crouch Jr]] [[LaughingMad laughs "like a madman"]] after being captured by Light forces in Chapter 12 of ''Annals'', because [[spoiler:he created a Horcrux to safeguard his life just in case that happened]].

%%* Pet The Dog: Hermione helps Filch make a potion using rune clusters as part of her paper. He's so happy that the Twins thought it was the end of times.

--->'''Hermione:''' A topological space is defined as a set of elements ''X'' and a collection of subsets of ''X'', ''tau'', such that the empty set and ''X'' are subsets of ''tau'', any union of members of ''tau'' belongs to ''tau'', and--\\

!!Tropes:

[[folder: # - K]]

** After the attack on the Rookery--the Lovegood residence--at the end of sixth year, [[spoiler:Xenophilius Lovegood escapes but fakes his death, later continuing to start the VoiceOfTheResistance ''Liberation'' newsletter anonymously under a different writing style.]]

* FauxDeath: Introduced in Chapter 61 of ''Lady Archimedes'', Hermione invents a spell that can suppress the victim's reticular activating system[[note]]A connected series of brain cell nuclei in vertebrates that regulate wakefulness and sleep-wake transitions[[/note]] and put them in a deep coma, and can't be woken up with anything but the specific counter-curse. Its incantation is [[ShoutOut based on]] the original Grimms' fairy tale title for ''Literature/SleepingBeauty''.

* {{Fingore}}: [[spoiler:During the excursion for the Ring Horcrux, Hermione uses her stiletto knife to cut off Dumbledore's finger (with his consent) after he put on the Ring, in an attempt to stop the spread of the curse. However, it is unknown whether this was successful, since Draco Malfoy is able to kill him after he returns to Hogwarts from the excursion, with his spellcasting impaired by a mixture of the curse and the cut finger.]]

[[folder: L - Z]]

* ANaziByAnyOtherName: The Death Eaters and later the Ministry when they take over, as per canon, but what solidifies this in the fic is that Hermione's first mental reaction to the Muggle-Born Registration Commission is to compare it to the Holocaust. [[spoiler:According to Percy's information gathered in the Ministry before he had to quit and make a run for it, the Death Eater administration was going so far as to [[FinalSolution build a "Mudblood Relocation Camp" for the "final phase" of their plan]] (which happens to be canon to the films).]] After the war, Hermione speculates that the pureblood supremacy ideology of the Death Eaters might have been straight-up copied from the Nazis due to how similar they are.

--> It wasn't hard to clear up the mix-up, though it did evoke quite a few red faces and some laughs from Fred, Harry, and Ginny. Traitors.
* OCStandIn: Being told from Hermione's perspective, we get to see the teachers that she, rather than Harry, interacts with, particularly Vector.

* TortureIsUseless: When Bellatrix captures Hermione and finds her map of the ley line distortions, she starts torturing Hermione to find out where she did her surveying work [[spoiler: because she hid the Cup Horcrux at a major ley nexus]]. Unfortunately, she refuses to believe it when Hermione tells her that she calculated the distortions based on continental drift, and just keeps hitting Hermione with Crucios while Hermione desperately tries to figure out what it is Bellatrix wants to hear.

* DidntThinkThisThrough: In the summer before second year, the Dursleys decide that they will tell the wizarding world that Harry ran away. However, when [=McGonnagal=] comes to fetch Harry after Hermione express her worry, she quickly informs them that there are ways to track underage wizards, of which owls are one of them.

* TimTaylorTechnology: Wizards believe that Dementors are immune to heat and fire. Hermione takes the view that "if fire didn't destroy it, you haven't used a fire hot enough", and builds a ritual around a solar furnace.
* ThereAreNoTherapists: Averted, Hermione saw a counsellor during the summer after her traumatic experiences in her first year.

--> '''Hermione:''' I christen thee...the Black Blade of Buckminsterfuller.

-->'''Hermione:''' ''Qanenu''.[[note]]Approximate translation: "All of you lament greatly!"[[/note]]

* RazorFloss: Once Hermione learns how to rearrange any source of carbon into nanotubes, she can fill an area with strands too thin to easily see, but strong enough and sharp enough to cut a man to ribbons.

* DePower: [[spoiler:Septima Vector loses her ability to use Arithmancy]] after she suffers traumatic brain injury due to being [[AgonyBeam Crucioed]].

* PopCulturedBadass: Hermione loves making literary references and nerdy jokes, particularly in front of Wizards who have no idea what she's quoting. For example, she names her sword [[TabletopGame/DungeonsAndDragons Snickersnack]].