From the brilliant mind behind The Ancient Magus' Bride comes a brand-new fantastical tale about a girl and the being possessing her as they travel around the vast country of Ireland. Running away from her home in Japan to the distant Ireland, the young Saku takes her first steps in a brand new country--and she's not alone. Though she appears to be travelling solo, a mysterious being has possessed her and is leading her on a mystical journey. But when she finds herself up against an immortal, silver-haired witch who promises to grant her wish, a new path leads her to the gods! Will she find freedom from her possession, or is this only the beginning of something bigger?