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"You know what you have done." That's the letter that the four children of a wealthy mother received almost a quarter of a century ago, after which she cut off all contact with them. So it seems rather strange when, years later, cousins Aubrey, Millie and Jonah receive an invitation to spend the summer at their mysterious grandmother's resort. Intrigued and determined, the teens head to Gall Cove Island to discover the true story behind their family's origins.

The Cousins is the brilliant new novel from Karen McManus, the internationally bestselling author of The Liar Among Us, Two Can Keep a Secret, and The Next Among Us, and winner of the Edgar Allan Poe Award for Best Book for Young Adults and the Goodreads Choice Award for Best Fiction for Teens.