The Cousins, the latest by Karen McManus, is just as thrilling as her New York Times bestselling debut, One of Us is Lying. The titular cousins are Milly, Aubrey, and Jonah Story, who barely know each other and have never met their grandmother, who disinherited their parents before they were born. During the summer in which the book takes place, all three are invited to work on the island where their grandmother lives. As they learn more about their family’s past, they realize that no one in or around the Story family has been telling the whole truth.

McManus used multiple first-person perspectives, which is rare but works quite well given that each character finds out different pieces of the mystery at different times. I liked that not every character was forced into a love story, as sometimes happens in young adult fiction. But given that it’s a thriller, the characters are not as important as the plot. Even knowing her style from reading all her previous books, I could not have predicted the ending. Every little thing that seemed weird or random in the beginning tied together by the end.

If you’re looking for something a little dark and a lot of fun, The Cousins is the perfect choice.