How to kill your best friend

Summary: "If you suspected your best friend, the person you were closest to in the whole world, was a murderer, what would you do? Would you confront her? Would you help keep her secret? Or would you begin to feel afraid? Most importantly, why don't you feel safe now that she's dead? From the author of The French Girl comes a novel full of secrets, suspense, and deadly twists. Georgie, Lissa, and Bronwyn have been inseparable since dominating their college swim team; swimming has always been an escape from their own problems, but now their shared passion has turned deadly. How can it be true that Lissa, the strongest swimmer they know, drowned? Granted, there is something strange about Kanu Cove, where Lissa was last seen, swimming off the coast of the fabulous island resort she owned with her husband. Lissa's closest friends gather at the resort to honor her life, but Georgie and Bron can't seem to stop looking over their shoulders. Danger lurks beneath the surface of the crystal-clear water, and even their luxurious private villas can't help them feel safe. As the weather turns ominous, trapping the funeral guests together on the island, nobody knows who they can trust. Lissa's death was only the beginning ..."--