Hamlet meets You've Reached Sam in this YA psychological thriller that is both heart-pounding and heart-wrenching.

Delta's spent the summer navigating the treacherous waters of losing her older sister, Gemma. Determined to brave junior year of high school without her sister, Delta finds solace in the arms of a new girlfriend. But grief takes a twisted turn when Gemma's tortured ghost appears with a dire warning.

Beware the storm.

Plagued by the haunting suspicion that Gemma's death involved foul play, Delta is plunged into a downward spiral of grief and paranoia. No one can be trusted—not her girlfriend, their friends, or her sister's once-loyal boyfriend. Not even Delta's own mind.

With a hurricane bearing down, two tempests collide at the abandoned Sea Glass Lodge. Accusations fly. Secrets unravel. And everyone is a target of the storm.