If They Knew

When Theo Parrish's father dies, he inherits more than grief-he inherits Parrish Cruise Lines, the ambitious start-up company his father spent years building from the ground up. Since his twin brother, Tyler, has no interest in the business, sole responsibility falls on Theo's shoulders.

Determined to prove himself-and to honor his father's legacy-Theo boards the company's first vessel for what should've been a simple training voyage, turns out to be anything but...

Without warning, a mer...