Lucy Tuppins Hawaiian Adventure Series -The Queen's Treasure

The Queen's Treasure is the first young adult book in a six-part Hawaiian Adventure Series of eight-year old Lucy Tuppins and her discoveries in the Sandwich Islands in 1828. The daughter of a missionary, her adventures take her through a paradise of lava tunnels, tropical jungles, and an encounter with the secret Menehune people while she stumbles upon the most unlikely clues to a thief's identity. She wants to explore the villages and valleys, but her father keeps Lucy tightly supervised and away from the Islanders. Little does he know that while he is busy destroying the fields and forests to make way for his new mission buildings, Lucy and her two friends, Eugene and Oliver, are in real danger as they attempt to help the Hawaiians bring balance back to the island and expose the thief who stole the Queen of England's jewels.