The Cousins, by Karen M. McManus, is a Mystery/Thriller. A dark, suspicious family continues to hide their secrets. Everything comes to light when Milly, Aubrey, and Jonah's grandmother invite them to work at their grandmother's house. When they go to the island, they realize that their family is more mysterious than they assumed. Milly, Aubrey, and Jonah discover all the secrets.
Ali and her cousin, Emma, visit their mothers’ childhood home. On their vacation, Emma decides to make friends with people. Both the girls go looking around Maine for a child around Emma’s age. One day, they meet a girl named Sissy. She spoils Emma and scares her by telling her about a murder. Even though the girls are frightened, they ask their aunt more about the story. As the story goes on, Ali and Emma realize that Sissy is not who she says she is.
