Sixteen-year-old Thomas wakes up with no memory in the middle of a maze and realizes he must work with the community in which he finds himself if he is to escape.

Eighteen-year-old Jill Charron wakes up in a hospital, unable to remember the past six weeks, including the accident that killed her best friend, if it was, in fact, an accident.

After a nasty fall, Naomi realizes that she has no memory of the last four years and finds herself reassessing every aspect of her life.

Waking up on a distant planet, Chase Garrety is horrified to learn that he has no memory of his life and finds himself under the protection of a mysterious benefactor who requires him to complete an important mission before time runs out.

A girl finds herself running through the forest at the edge of a village with no memory of anything, even her own name, and later learns that she might be twelve-year-old Isabelle, believed to be stolen by a witch six years before.

Time is short, but eighteen-year-old Charlie West has one last chance to stop the Homelanders from attacking when he finally gets back enough of his memory to realize when the terrorists are going to strike next.

In Transylvania during the Middle Ages, Fell, a lone wolf with unusual abilities, learns that his destiny is entwined with that of one human, fifteen-year-old Alina, whose mysterious origins have villagers believing she is a changeling.

When Old Man Paddler dreams that his long-lost twin brother is alive and in trouble on a beautiful Caribbean island, he sends the gang to try to find him.

When Amelia woke up in the hospital with bruises, broken bones, and a concussion, everybody insisted that she accidentally fell down the embankment and almost into the river; but Amelia cannot shake the feeling that she was pushed, especially since another young woman was found nearby, dead--and so, with the help of a new friend, Liam, and despite her best friend's reservations, she sets out to discover the truth, even though her search seems to be...

Each summer the wealthy, seemingly perfect Sinclair family meets on their private island. Cadence, Johnny, Mirren, and Gat are a unit, especially during "summer 15," marking their fifteenth year on Beechwood-- the summer that Cady and Gat fall in love. Cady became involved in a mysterious accident, in which she sustained a blow to the head, and now suffers from debilitating migraines and memory loss. When she returns to Beechwood during summer 17...