Siren's Storm

Nothing has been the same for Will ever since what happened last summer. One day, on an ordinary sailing trip with his brother, there is a strange accident. When Will wakes up, he learns his brother has disappeared, presumed drowned. Worst of all, Will can't remember what happened—his family finds him unconscious, with no memory of the accident.

Now Will and his best friend and neighbor, Gretchen, are starting a new summer. Gretchen seems troubled—her sleepwalking habit is getting worse, and...