Super Short Summary

Challenger Deep by Neal Shusterman follows a 15-year-old boy named Caden who grapples with severe anxiety and experiences auditory and visual hallucinations. His journey alternates between a reality where he is a high school student and a delusion where he sails on a ship toward the Marianas Trench. Caden's voyage on the ship mirrors his treatment in a psychiatric hospital, where he works to confront and manage his mental illness. The novel includes sensitive depictions of self-harm and psychiatric hospitalization.