Cal, Winter, Ryan and Boges have had enough adventures for a lifetime. Now all their enemies are locked up or have disappeared. Still, Winter can't shake the feeling that she is being watched. When she's mailed a note saying, The Drowner... 30 days, her worst fears are realized. Who could be after her and her friends this time? With Cal away at flight school and a dangerous mystery to solve, will Winter be able to survive the 30-day countdown? Or...