Sara Blum lives an idyllic life. But her world comes crashing down when the Nazi occupation arrives in her small French town, separating her from her parents and forcing the young Jewish girl into hiding. Sara's classmate Julien and his family will risk everything to ensure her survival, and together, Sara and Julien manage to find beauty in a secret world of their creation. Originally published as a graphic novel, and featuring characters from the multi-million-copy-selling phenomenon Wonder, Sara and Julien's powerful, heartbreaking and timeless story is told here for the first time as a novel, and shows the power of kindness to change hearts, build bridges, and even save lives in the darkest of times.