When Blair and Bristol Bellamy’s overprotective parents agreed to let their daughters spend spring break in Oahu, they never anticipated that only one of them would return. What should have been a week of soaking up the Hawaiian sun next to pristine blue waters takes an unexpected turn when Blair wakes up on the beach one morning with no purse, no shoes, and no memory of what happened the night before.

And worse?

No sister. Bristol had vanished into the night. Gone without a trace.

After months of tireless investigations and dead-end searches, Blair was forced to return home to the Midwest without her younger sister, and her life was never the same—until ten years later when a package arrives, signaling the last of its kind.

Does this mean Bristol’s gone for good or is there reason to believe she’s still alive?