A young woman mysteriously drowns in Lake Lucinda. She’s not the first to die there and she might not be the last. FBI Agent Victoria Heslin visits her family’s secluded lake house to recuperate from a plane crash. But her peaceful recovery time turns into a murder investigation when she discovers the body of an unidentified young woman in the lake. Only a few others live in the exclusive Lake Lucinda community and all of them are suspects, including Victoria’s brother. Which of them knows more than they are saying? How many of them are lying? Who is guilty? As Victoria’s personal investigation unfolds, she learns they all have secrets to hide. Will Victoria uncover the dark mysteries of Lake Lucinda before more lives are lost? And will doing so destroy what’s left of her family? Fans of James Patterson, Megan Miranda, and Agatha Christie will love this mystery by USA Today bestselling author Jenifer Ruff. Ripple of Doubt is book 4 in the award-winning Agent Victoria Heslin Thriller Series. It can be read as a standalone.