''Fever Dream'' is a novel by Douglas Preston and Lincoln Child first published in 2010. It is part of their informal [[Literature/AgentPendergast Agent Pendergast series]] and the first novel in the Helen Trilogy story arc.

Twelve years after her death, Agent Pendergast learns a horrible fact about his wife - she was murdered. His grief over her loss renewed, he begins an exhaustive search to bring her killers to justice and learn just why she had to die.

!!This novel provides examples of:

* AndThisIsFor: [[spoiler: Pendergast lists off all the wrongs the posse did or attempted to do to him and Hayward as he destroys their boats and bar.]]
* AttemptedRape: Tiny's posse tries to rape [[spoiler:Laura]] in the swamp.
* BeethovenWasAnAlienSpy: John J. Audubon's artistic genius was the result of a rare form of avian flu that altered his brain chemistry.
* BoomHeadshot: "Yes, he is most certainly dead."
* CliffHanger: [[spoiler: Pendergast arranges a hunting trip with Judson at the end of the book, but doesn't know that he's been the one trying to kill him throughout the entire novel.]]
* DarkestAfrica: Helen's death took place in Africa and Pendergast's search for the truth begins there.
* DisproportionateRetribution: Inverted. [[spoiler: Pendergast destroys Tiny's Bar in retaliation for him and his gang trying to rape Laura and kill the both of them.]]
* DrivenToSuicide: [[spoiler:How Pendergast deals with Slade]].
* ExactWords: Pendergast promised Hayward ''he'' wouldn't kill [[spoiler:Slade]]. He never said anything about [[spoiler:getting him to do it himself]].
* FakingTheDead: [[spoiler: Charles Slade and June Brodie. Although the the former isn't faking death anymore by the end of the book]]
* FateWorseThanDeath: [[spoiler: Slade's affliction with the avian flu. Hence why Pendergast doesn't see the need to kill him himself and gets Slade to do the deed instead.]]
* HeKnowsTooMuch: [[spoiler: Why Esterhazy kills Blackletter, Blast, Ventura, and nearly Pendergast.]]
* InTheBlood: Discussed about the Doane family. Everyone is convinced the family all went insane because it was in their blood. [[spoiler:They were actually affected by the avian flu strain.]]
* MakeItLookLikeAnAccident: [[spoiler:Helen was murdered by a trained lion used to fake a hunting accident.]]
* TheManBehindTheMan: [[spoiler:Judson Esterhazy]] is responsible for Helen's death.
* TheMole: [[spoiler: Maurice]]
** Although this is later subverted in ''Literature/ColdVengeance''. He was never aware of [[spoiler: Esterhazy's]] real intentions.
* PosthumousCharacter: Helen. [[spoiler:[[{{Literature/ColdVengeance}} Or so it seems...]]]]
* RedHerring: D'Agosta says he thinks the Doane family madness is a red herring.
* RoaringRampageOfRevenge: Pendergast swears to kill those responsible for his wife's death.
** Seems to be the case for Esterhazy. [[spoiler: Subverted when he attempts to kill Pendergast and winds up shooting D'Agosta and it turns out he's carrying out a much darker agenda.]]
* RoomFullOfCrazy: The entire Doane house, which certain rooms show the descent into madness of individual family members.
* TownWithADarkSecret: Sunflower, Louisiana. Everyone gets incredibly defensive if someone asks about the Doane family.
* VigilanteExecution: The sheriff of Sunflower executes Mr. Doane in his home after his entire family has gone mad and died and he has begun perpetrating unspeakable horrors.
* ViralTransformation: In mental capacity.
* WhatTheHellHero: Hayward lays into Pendergast in when [[spoiler: D'Agosta gets shot.]] She even slugs him.
* XanatosGambit: The result of Pendergast's confrontation with [[spoiler: Slade. If he doesn't kill himself, [[CruelMercy then he's stuck living with the affliction that's eaten away at his mind]] [[FateWorseThanDeath so much that death would be a blessing for him]]. If Slade kills himself, then Pendergast accomplishes the goal that he set out for in the first place - namely, the end of the man who ordered his wife's death.]]