The 39 Clues, Book 7

In Book 7 of the bestselling series, Amy and Dan Cahill confront their most perilous challenges yet as they uncover dangerous secrets from their past. With their lives at stake after witnessing a murder and with the Indonesian police on their trail, they find themselves trapped on an island amidst brewing chaos. As a storm approaches, the siblings face revelations about their family's dark history that could change everything they thought they knew.