A sci-fi thriller novel written by Rob Thurman, best known for the [[CalLeandros "Cal Leandros"]] series. Stefan Korsak is a bodyguard in the Russian mafia who is searching for his long-lost brother Lukas, kidnapped ten years ago when they were children. Finally, Stefan finds Lukas in a sinister institution which has been performing genetic experiments on children, training them to be superhuman killing machines. But 'Lukas', who insists that his name is Michael and refuses to accept that Stefan is his brother, has no memory of his life and no knowledge of the world outside the institute. Now on the run from Jericho, the mastermind behind the 'special' children, Stefan has to win his brother's trust and keep them both alive...

The sequel to ''Chimera'' is ''{{Basilisk}}'', told from Micheal's point of view instead of Stefan's. Michael is at least as snarky as Stefan, and is as over-protective of his brother as Stefan is of him. The brothers search for a way to resuce the other children of the Institute, only to find themselves on the run from the Institute and a Federal agent.

!!'''Contains examples of:'''
* BigDamnHeroes: [[spoiler: Anatoly, who has been MIA for the whole book, showing up just as Jericho is about to kill Stefan and Lukas.]]
* BigBrotherInstinct: Stefan epitomizes this trope. Don't mess with his brother.
* BilingualBonus: The book is littered with Russian words and phrases, even though the setting itself is in America.
* BittersweetEnding: [[spoiler: Stefan and Michael both survive, but it turns out that Michael isn't actually Lukas, and Lukas died ten years ago..... Which means that Stefan spent ten years searching for him, but by the end of it, he did find a brother in Michael.]]
* BlessedWithSuck: Michael's ability to kill people just by touching them, as well as the other kids at the Institute.
* CreepyChild: Wendy.
* DeadpanSnarker: Both Stefan and Michael, which makes for hilarious banter.
* DoNotCallMePaul: Michael refuses to answer to the name Lukas, so Stefan compromises by calling him 'Misha', the Russian version of his name.
* EvilUncle: [[spoiler: Uncle Lev.]]
* {{Expy}}: Personality wise, Stefan and Michael are exactly like Cal and Niko Leandros respectively, with the roles of big and little brother switched. Saul is also exactly like Robin Goodfellow from the same series.
* FishOutofWater: Michael, who's had little exposure to the world outside of field trips and the occasional movie.
* GroinAttack: Michael takes care of pedophile Vanderburgh by [[spoiler: cutting off blood flow to his testicles.]]
* HealingFactor: Michael heals faster than normal human beings.
* KnightTemplarBigBrother: Stefan, who's been searching for Lukas for ten years.
* MeaningfulName: The children at the Institute are all named John, Michael, Wendy or Peter - the main characters of ''Peter Pan''.
* PapaBear: Anatoly. The people who harm or threaten his sons tend to... disappear.
* ParentalAbandonment: Stefan and Lukas's mother died when they were very young, and their father disappeared shortly after Lukas was kidnapped.
* PsychicPowers: Michael, and the other kids at the Institute.
* SharedUnusualTrait: Lukas/Michael has one blue and one green eye. Then again [[spoiler: so do all the kids at the Institute.]]* {{Tearjerker}}: [[spoiler: Michael TakingTheBullet for Stefan and finally calling him his brother. [[UnexplainedRecovery He Gets Better.]] ]]
* TeenGenius: Michael. Stefan teases him about it.
* TwistEnding: See BittersweetEnding above.
* TheUnseen: Stefan's girlfriend Natalie, who's referred to several times but never seen. Anatoly, [[spoiler: until the end.]]