A deadly, flu-like epidemic and a plague of flesh-eating creatures threaten the lives of the children at Perdido Beach while Sam, Astrid, Caine, and Diana each struggle with doubts and uncertainties.

In a small town on the coast of California, everyone over the age of fourteen suddenly disappears, setting up a battle between the remaining town residents and the students from a local private school, as well as those who have "The Power" and are able to perform supernatural feats and those who do not.

"When Breen Kelly was a girl, her father would tell her stories of magical places. Now she's mired in student debt and working a job she hates. She discover her mother has been hiding an investment account in her name, funded by her long-lost father - and it's worth nearly four million dollars. She uses some of the money to journey to Ireland, and begins to understand why she kept seeing that silver-haired, elusive man, why she imagined his voice...