In a breathtaking new voyage of discovery from the Caldecott Honor-winning creator of the Journey trilogy, a cautious boy must summon his courage to navigate real and fantastical landscapes alike in search of courage and connection. A boy and his courage are tested when a bunch of playful kids interrupt his game of make-believe near the local swimming hole. "Come on!" they gesture, urging him to leap with them into the dark pool. But he's not ready to take the plunge. When his favorite toy falls into the water, a majestic creature emerges from the depths, inviting him on an adventure into the unknown. The boy journeys with his newfound friend into a surreal wilderness and through its countless obstacles--all the way back to the very thing he lost . . . and to something even greater found.