Teeth of the Sea — Tim Waggoner

They glide through dark waters, sleek and silent as death itself. Ancient predators with only two desires â€" to feed and reproduce. They've traveled to the resort island of Las Dagas to do both, and the guests make tempting meals. The humans are on land, though, out of reach. But the resort's main feature is an intricate canal system . . . . . . and it's starting to rain.