Hannah, Zachary, and Sarah Emily have mixed feelings about spending their summer at their great-aunt Mehitabel's house on remote Lonely Island. But their interest is piqued when great-aunt Mehitabel sends them a letter with a key for the tower room and a hint to explore Drake's Hill.
Join them as they discover a secret lair of a three-headed dragon who teaches them a valuable moral lesson with each visit. Children will want to read about this magical summer adventure again and again. What's in the cave near your house?