A girl without family, past, or home, Lacuna and her friend Polaris, a will-o'-the-wisp from a swamp made of ink, set out on an adventure to the Northern Kingdom of fable, hoping to find someone like her. The only way north, unfortunately, is the Blue Road, full of dangers like the twisted briars of the Thicket of Tickets and the guards at the Rainbow Border. Even at the end of her journey, more trials await.