Girls afraid of the water shouldn't swim with sharks.After a boat trip turns tragic, Audrey reunites with Sinto-a mysterious boy she met as a child-who offers her an eye-opening glimpse of a parallel world tethered to Earth.But fate deals an ugly twist. Audrey learns danger lurks in the depths of Earth's oceans and Sinto may not be as innocent as he seems. She unwittingly becomes a pawn in a high-stakes game of murder and revenge that began over three hundred years ago.Uncertain who to trust and with nowhere to run, she must embrace her deepest fear to save an innocent life.But at what cost?Debut author, Lisa Cram, delivers an action-packed science-fiction adventure swirling with mystery and intrigue.