Diana Urban
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Description
Soon after receiving an anonymous message stating that she has twenty-four hours to play a game by the sender's rules or he will kill her sister, sixteen-year-old Crystal Donovan realizes that cooperating will destroy her friends' lives and she must figure out a way to beat the kidnapper at his own game before she loses everything.
Author
Description
When her boyfriend leaves her for her best friend, Jade joins a semester long cruise program unaware that the two are also onboard, and when her ex-boyfriend is murdered and his new girlfriend goes missing, Jade must dig into her shipmates' lives to find the murderer and clear her name.