Adeline Evans has recently moved into a home for the elderly. A safe space, where she can be cared for. When she begins to receive cryptic and threatening notes, she is certain that someone is out to get her. But the residents are warned against listening to a woman who is losing her memory. It would seem Adeline is tormented by the secrets in her past, and that the menace is all in her mind. Until danger comes down the corridor and starts knocking...

In chapters that alternate between the past and the present, Cat slowly recalls her life before she and her classmates were trapped inside School, where half of them are mutating, everyone is fearful, and self-destruction seems to be the only means of escape.

Months after her sister's death, Marianne wakes up to find a growth of thick black hairs along her spine. They defy her attempts to remove them, instead proliferating, growing longer. The hairs, Marianne's doctor tells her, are a reaction to trauma, developed in the wake of the loss of her sister, Marie. Her doctor recommends that Marianne visits Nede, a modern, New Age rehabilitation center in a remote forest in Wales where the patients attend unorthodox...

"Beth Picard has always felt a little different from her friends. For one thing, she doesn't remember anything about her life before she and her mother moved into the house they live in now. Then one day, Beth learns about a girl in a nearby town who looks like her-- exactly like her. Could it be a long lost sister or cousin? Does this girl hold the key to Beth's memories? And if so, does Beth really want to know the truth about her past? Does she...