History RequiredSecondaryPowers / Literature

* HGWells's ''Literature/TheInvisibleMan'' needed to walk around naked to use his power, and had to avoid eating beforehand, so that digestion wasn't visible. Also, his corneas weren't actually invisible, just really, really hard to see due to some partial invisibility and small size. His eyelids, on the other hand...

* On a similar note, in ''Literature/HarryPotter'' it is mentioned that people are (almost) weightless while flying a broom. Otherwise doing so would be [[GroinAttack very unpleasant]].
** It's called a Cushioning Charm, and its pretty much spelled out in ''[[AllThereInTheManual Quidditch Through The Ages]]'' that the first brooms were {{Groin Attack}}s before the development of that spell. A handy diagram in that book likens the effects to an invisible pillow directly under where the person sits.

* In [[http://lib.aldebaran.ru/author/lukin_evgenii/lukin_evgenii_sila_deistviya_ravna/lukin_evgenii_sila_deistviya_ravna__1.html one of]] YevgenyLukin's short stories, a wife with telekinetic abilities constantly threatens to send her husband to the [[https://en.wikipedia.org/wiki/Karakum_Desert Karakum Desert]]. In the end, she does... ends up in [[https://en.wikipedia.org/wiki/Chukotka Chukotka]] herself.

* In ''Literature/StarCarrier'', ships moving near the speed of light (for example, {{Space Fighter}}s launching a near-''c'' AlphaStrike) generate a gravity well ahead of them to clear away dust particles and such, which would cause severe damage if struck at relativistic speeds.

* In ''Literature/{{Animorphs}}'', the heroes frequently come to the conclusion that the Andalite scientists who created the ability to morph into animals must have also added the ability to not feel pain as your organs and bones transform with a sickening sound.

* In ''Literature/{{Animorphs}}'', one of the heroes once ponders that the Andalite scientists who created the ability to morph into animals must have also added the ability to not feel pain as your organs and bones transform with a sickening sound.
* ''Literature/TheWheelOfTime'' has [[AdventureDuo Gaidal and Birgitte]] living and being reborn together, when Birgitte breaks the cycle she despairs that Gaidal will be too reckless and die without her being there.

* Not touched upon at all in SergeyLukyanenko's ''RoughtDraft'' and its sequel ''Final Draft'', where the protagonist is erased from existence and becomes a "[[DifferentlyPoweredIndividual functional]]", gaining various abilities specific to his "function", in this case that of an interdimentional customs official. He lives in a water tower that links to several parallel worlds. His job is to let other functionals and normal people through, provided they follow the rules and pay their customs duties. His powers include super-strength, super-speed, nigh-invulnerability, knowledge of advanced martial arts, knowledge of all contraband items and duties, and the ability to determine what a person is carrying at a glance. At one point, he is running away at super-speed from soldiers and helicopter gunships. Nobody mentions that he should be bouncing instead of running, but he is able to zig-zag, avoiding bullets. The soldiers then take a pill that temporarily allows them to move as fast as him. The second novel briefly touches upon the functionals using advanced quantum physics to do whatever they please (something about taking pieces of themselves from myriad other worlds, where their powers are the norm).

** Because the ability to eat all the food you want and not gain a pound is such a big downside. It's only a problem when she is given standard prisoner rations, which isnt enough for her to maintain her weight.

* In TimothyZahn's ''[[TheCobraTrilogy Cobra]]'' trilogy, the eponymous Cobras are commandos whose bones have been covered with a practically unbreakable ceramic laminae, whose joints have been augmented with servomotors, and who have been implanted with a power source, concealed energy weapon systems and a computer to help them control everything (which also provides a library of preprogrammed "combat reflexes", shortening training time). In the first book, the initial crop of training injuries are skin abrasions and subcutaneous bleeding caused by not possessing RequiredSecondaryPowers for super strength. It's eventually discovered that Cobra modifications inevitably cause anemia, arthritis, and (believed) immune system deficiencies. (The books are devoted less to combat than the peacetime ramifactions of wartime decisions... incidentally, Cobra recruitment is still going strong by the end of the trilogy, two generations later.)

* Similar to Pern, the [[VoluntaryShapeshifter Eleint Soletaken]] of the ''MalazanBookOfTheFallen'' are able to transform into massive dragons. However, the sheer size of their new forms means that half of their flight relies on sorcery and if their wings are damaged they need to rely almost solely on it to stay airborne.

* ''TuckEverlasting'' is probably the first children's book to examine WhoWantsToLiveForever in detail. It's never explicitly stated that the characters can't die in ''any'' way (other than a brief anecdote of Jesse surviving a fatal fall), but this is implied to be the case, given the Tuck household's being located squarely on DysfunctionJunction and the fact that none of its inhabitants have [[DrivenToSuicide offed themselves]] in their roughly 100 years of immortal life thus far.

* Lampshaded as early as the first scene of ''TheRunelords'' in which two men who each have multiple endowments of strength engage in a fight which the narrator explains is little more than "bone breaking contest" for though they both have super strength, that power does nothing to harden their bones. The books further illustrate the need to balance ones endowments such as balancing 'brawn' with 'grace', 'metabolism' 'stamina', and 'wit'.

* In the {{Midnighters}} series, one of the characters incredible leaping abilities in during the 'blue hour' translate to leParcour in normal time because of his innate sense of physics.

* Directly stated in the ''WildCards'' series of novels with the beautiful (and [[WingedHumanoid winged]]) character of Peregrine. When a boyfriend tells her he hates mutated "Jokers", she explains to him that she is one. After all, her wings are large deformities that are not the source of her [[{{Flight}} flying ability]], she does that psychically.
** The ''WildCards'' criminal Fadeout bends light to become invisible, and is effectively blind while doing so. He can only see by making his eyes visible.

* ''Heretics of {{Dune}}'' sees [[spoiler:Miles Teg]] gain SuperSpeed, but needs to become a BigEater to compensate (several characters lampshade his Big Eating). He also gets his hands badly bruised and torn from hitting his enemies at such speeds.

* In LarryNiven's ''KnownSpace'' series, humanity has developed teleportation technology that has distance and mass limits due to the Law of Conservation of Energy. Teleporting east-west doesn't generate many problems, but teleporting too far north-south generates problems because of the difference in orbital velocities between where you are and where you were. In short, teleport too far north or south, and you arrive at your destination as a human-shaped exploding nuclear weapon.
* In one ''DragonLance'' story, a group of Gnomes fly a zeppelin to the moon of Lunitari, the god of neutral magic. The inherent magic gives them powers...but not secondary powers. At first the powers are very light; one can see slightly better, one can hear slightly better, one is stronger, one can cling to walls, etc... but with prolonged exposure the powers keep getting stronger and stronger. Eventually the one with sight starts seeing through the entire moon with covered eyes, the one with hearing has to stuff his ears lest the crawl of insects make them bleed, the strong one breaks everything he touches and the clingy one just gets stuck.

* ''Literature/WheelOfTime'' has [[AdventureDuo Gaidal and Birgitte]] living and being reborn together, when Birgitte breaks the cycle she despairs that Gaidal will be too reckless and die without her being there.

* In ''Literature/{{Animorphs}}'', one of the heroes once ponders that the Andalite scientists who created the ability to morph into animals must have also added the ability to not feel pain as your organs and bones transform with a sickening sound.

* In ''Literature/Animorphs'', one of the heroes once ponders that the Andalite scientists who created the ability to morph into animals must have also added the ability to not feel pain as your organs and bones transform with a sickening sound.

* In David Eddings's ''{{Belgariad}}'', when you use magic to move an object, the resulting force is the same as if you had physically touched the object - so you have to brace yourself with equal force, similar to tightening up your muscles, or some such. The main character learns this the hard way the first time he tries to move a giant stone, as he ends up buried up to his armpits in the ground (he tried to push it up instead of merely sideways).

* On a similar note, in ''HarryPotter'' it is mentioned that people are (almost) weightless while flying a broom. Otherwise doing so would be [[GroinAttack very unpleasant]].

* [[TheDresdenFiles Harry Dresden]] gets badly screwed when a vampiric sorceress works out that the force fields he uses so much block force, but not heat. Two of her goons break out the flamethrowers, and while the shields block the napalm itself, the heat roasts Harry's hand and renders it nigh-useless for several books. When he finally gets around to making a new shield bracelet, he hits the books with this trope. The new shield protects against ''everything'', even things like ''sound'' and ''electricity'', but this has the drawback of using more of his energy.

* Addressed for {{teleportation}} in the third ''YoungWizards'' novel, ''High Wizardry''. When Dairine first becomes a wizard [[PowersAsPrograms she gets a computer which does the spells for her]], with Dairine acting as the power source (sort of a training-wheels for wizards). After a long-range teleport renders her nauseous, [[PowersAsPrograms she opens up the source code for the teleportation spell]], determined to improve it... only to find that it's highly complex, dealing with all the things that are needed to keep a human alive when teleporting over long distance. She wisely decides to leave it alone until she has a lot more experience.

* Thanks to BrandonSanderson's rather [[FunctionalMagic scientific approach]] to [[MagicAIsMagicA magic systems]] lots of his powers show the problems of missing Required Secondary Powers. For instance in the {{Mistborn}} trilogy, tineyes have heigtened hearing and sight, but can be very vulnerable to bright lights and loud noises while burning. Steelpushing and Ironpulling are not run-of-the-mill telekinesis, but are based around force, mass, and their interaction through Newton's Third Law. The Kandra are a race of shape shifters with a HealingFactor who can't actually be killed by wounding them, but wounds are still incredibly painful and regeneration takes time.

* In ''Animorphs'', one of the heroes once ponders that the Andalite scientists who created the ability to morph into animals must have also added the ability to not feel pain as your organs and bones transform with a sickening sound.

* The dragons from ''DragonridersOfPern'' generally range from 20 to 42 ft. long, with wingspans not anywhere near large enough to support that much weight in flight. Much later in the series, it's [[{{Retcon}} retconned]] that they're instinctively using telekinesis to help out the flight process. Since their [[PsychicPowers telepathic and teleportation abilities]] were known long before this, it's not a huge leap.

* In the ''[[WarlockOfGramaraye Warlock In Spite Of Himself]]'' series, Rodney's children do an AsYouKnow InfoDump about how being able to sense where you're about to teleport is a survival characteristic to avoid TeleFrag.

* This can be an issue with the ElementalPowers in the ''CodexAlera''. A windcrafter can move with SuperSpeed, but if they go too fast they risk breaking their own bones; a metalcrafter can block out huge amounts of pain, but may consequently ignore severe injuries that incapacitate them; a watercrafter can [[TheEmpath feel the emotions of those around them]], but any especially strong emotion can have them [[UnhappyMedium curled up in a ball and wimpering]]. Most of these weaknesses can be made up for with a talent for one or more of the other elements, but since very few people outside of the [[AuthorityEqualsAsskicking High]] [[PersonOfMassDestruction Lords]] can use all of them, {{Unhappy Medium}}s, {{Fragile Speedster}}s, and the like are fairly common.

* The ''Literature/CircleOfMagic'' series at least nods to this now and then. There's at least one seer in the series who can't control or ignore his visions and was locked up as a madman. Daja and Frostpine are noted to be lucky enough to have fire resistance, with the implication that there are smith-mages who don't.

* The ''CircleOfMagic'' series at least nods to this now and then. There's at least one seer in the series who can't control or ignore his visions and was locked up as a madman. Daja and Frostpine are noted to be lucky enough to have fire resistance, with the implication that there are smith-mages who don't.

* The ''Literature/CircleOfMagic'' series at least nods to this now and then. There's at least one seer in the series who can't control or ignore his visions and was locked up as a madman. Daja and Frostpine are noted to be lucky enough to have fire resistance, with the implication that there are smith-mages who don't.