A young boy and his older sister have left home to play a game. To win, she tells him, they must travel across endless lands together and make it to the finish line. Children they meet along the way imagine what might be waiting for them across the border: A spotted dog? Ice cream! Or maybe a new school. But the journey is difficult, and the monsters are more real than they imagined. And when it no longer feels like a game, the two children must still find a way to forge ahead, and reach the other side. This is a symbolic and emotionally rich picture book about the spirit and strength it takes to leave your home behind.