The sinister puzzle of an FBI linguist's past is far from finished in a gripping novel of twisted family ties, from USA Today bestselling author Brianna Labuskes. FBI forensic linguist Raisa Susanto thinks she's through with the past now that her psychopathic serial killer sister, Isabel, is locked away forever. Then Raisa receives a letter from Isabel. It's just a single message: By the time you read this, I'll be dead. Soon...