“Book Descriptions: Crystal Key is the perfect island getaway... until a frilled shark turns the waters around it into a feeding ground. That's just the start of the carnage, because whatever has made this docile creature into a bloodthirsty predator is also out to get the island's residents. An alien parasite that transforms friends and family into mindless, murderous husks.
When a hurricane descends, a teenage boy, his estranged father, and a low-level gangster must band together to escape the extraterrestrial onslaught.
But how do you flee from a horror that can attack from above and below? Everyone is dying to figure it out.