If They Knew

A young cruise line heir must fight to keep his passengers alive aboard a stranded ship as supplies dwindle and deadly secrets surface in this survival thriller set at sea.

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 t...