Super Short Summary

The Cousins by Karen M. McManus centers on Milly, Aubrey, and Jonah, three grandchildren of Mildred Story, who are mysteriously invited to spend the summer on Gull Cove Island. They uncover family secrets involving disinheritance, concealed identities, and dark past events, including the circumstances surrounding a teenage boy’s death years earlier, which had lasting effects on their relatives. Topics include trauma, substance abuse, and death by drowning.