In 1946 Eva arrives in New York City, from the rubble of Berlin, supposedly looking for a new life, but actually seeking justice against the Nazis that "escaped" with the help of the CIA; one in particular, the doctor who knows who Eva really is, because her identity is the product Project Bluebird, an experiment of the concentration camps involving brainwashing and mind control, which both the Americans and the Soviets would like access to--and Eva...
It is 1943, and for four years, sixteen-year-old Stefania has been working for the Diamant family in their grocery store in Przemsyl, Poland, singing her way into their lives and hearts. She has even made a promise to one of their sons, Izio -- a betrothal they must keep secret since she is Catholic and the Diamants are Jewish. But everything changes when the German army invades Przemsyl. The Diamants are forced into the ghetto, and Stefania is alone...
Canaan is a quiet city on an idyllic world, hemmed in by high walls, but every twelve years the town breaks out in a chaos of bloody violence, after which all the people undergo the Forgetting, in which they are left without any trace of memory of themselves, their families, or their lives--but somehow seventeen-year-old Nadia has never forgotten, and she is determined to find out what causes it and how to put a stop to the Forgetting forever.
The underground city of New Canaan is safe from the Forgetting which afflicts Canaan above ground, but in her rigidly controlled and repressive city eighteen-year-old Samara, one of the Knowing, is plagued by her memory of the horrors she has seen, and determined to seek answers in the cursed city above--where she will find Beckett Rodriguez and his parents, on a mission from Earth to study the lost colony.
In the Sunken City that was once Paris the guillotine rules again, while Sophia Bellamy from the Commonwealth across the Channel Sea tries to rescue as many of the revolution's victims as she can smuggle out, and some prisoners disappear from their cells, with a red-tipped rook feather left in their place--but who is the mysterious Red Rook and where does Sophia's wealthy fiancé, René Hasard, fit in?
In 1852, when seventeen-year-old Katharine is sent to her family's estate to prove that her uncle is insane, she finds he is an inventor whose work creating ingenious clockwork figures supports hundreds of families, but strange occurences soon have her doubting her own sanity.
When Katharine Tulman foils an attempt to kidnap her Uncle Tully, she finds herself caught up in international intrigue. Aware that there are people who want to turn her uncle's mechanical fish into an explosive device, and unsure of who to trust, she decides to fake her uncle's death and flee to Paris in search of Lane Moreau, her uncle's assistant.