When Pentagon bioterror operative Roberto Diaz was sent to investigate a suspected biochemical attack, he found something far worse: a highly mutative organism capable of extinction-level destruction. He contained it and buried it in cold storage deep beneath a little-used military repository. Now, after decades of festering in a forgotten sub-basement, the specimen has found its way out and is on a lethal feeding frenzy. Only Diaz knows how to stop it.

It’s December 19, 1931. Hercule Poirot and Inspector Edward Catchpool are looking forward to a much-needed, restful Christmas holiday, when they are called upon to investigate the murder of a man in a Norfolk hospital ward. Cynthia Catchpool, Edward’s mother, insists that Poirot stay with her in a crumbling mansion by the coast, so that they can all be together for the festive period while he solves the case.

It's 1990 in London and Tom Hargreaves has it all: a burgeoning career as a reporter, fierce ambition and a brisk disregard for the "peasants"—ordinary people, his readers, easy tabloid fodder. His star seems set to rise when he stumbles across a sensational scoop: a dead child on a London estate, grieving parents beloved across the neighborhood, and the finger of suspicion pointing at one reclusive family of Irish immigrants and “bad apples”: the Greens. At their heart sits Carmel: beautiful, otherworldly, broken, and once destined for a future beyond her circumstances.

Carolyn's not so different from the other human beings around her. After all, she was a normal American herself once. That was a long time ago, of course - before the time she calls "adoption day", when she and a dozen other children found themselves being raised by a man they learned to call Father.

Gav isn't really sure how he ended up with a castle full of goblins, or why he has a princess locked in a cell. All he can do is play along with his own evil plan in hopes of getting his memories back before he gets himself killed. But as he realizes that nothing—from the incredibly tasteless cloak adorned with flames to the aforementioned princess—is quite what it seems, Gav must face up to all the things the Dread Lord Gavrax has done. And he'll have to answer the hardest question of all—who does he want to be?