Book excerpt: Jim Leighton is young, fit, and hungry for excitement—and his dream of adventure is coming true, now that he's been hired as a deckhand and personal trainer to a wealthy investment banker and setting sail for Rio de Janeiro aboard the luxury yacht Hustle. But Jim's enigmatic employer is not what he seems. With all his money, charm, and seafaring tales, Will Sparks is a man who's guarding a terrifying, potentially lethal secret. And in the middle of the Atlantic Ocean, Sparks makes a startling announcement: They are changing course for Africa because someone is pursuing them. Someone who wants them dead. With no previous sailing experience—far from the sanctuary of land and in the company of a stranger who is possibly delusional and certainly dangerous—Jim is suddenly trapped in a harrowing race for survival across the vast waters of the globe, fleeing a faceless threat that inexplicably knows where they are and where they are going. And when destiny places him alone at the helm, Jim's options are reduced to two: sail or die, because the terror relentlessly approaching at breakneck speed will not be shaken off or deterred—nor will it rest until Hustle and Jim Leighton both lie broken and lifeless on the ocean floor.