“What would you tell your teen self if you could go back in time? Underhill’s tender, innovative debut is the smartest take on this trope I’ve ever read. . . and for the record, I read it in a single sitting. A beautiful, thoughtful study of how we find our truest selves, and whom we choose to trust with that gift.” — Jodi Picoult, #1 New York Times bestselling author A poignant and enchanting novel about a magical bookstore that transports a trans man through time and brings him face-to-face with his teenage self, offering him the chance of a lifetime to examine his life and identity to find a new beginning.