Trapped in her tower, Rapunzel has nothing but time to kill and hair to brush. But what if she could use her long locks to engineer an escape? In this retelling of the classic fairy tale, readers will use STEM problem-solving activities to help Rapunzel reach her happy ending! Engaging projects, such as testing a strand of hair's strength against cotton thread and designing a zip wire, introduce readers to key STEM concepts. Readers will love exercising their critical thinking and creativity to play a part in Rapunzel's story. Charming illustrations and the interactive format make this innovative book a valuable addition to any library.