Deep in a city where every building casts two shadows — one for the past and one for the future — a young mapmaker named Wren discovers an unfinished map tucked inside her grandmother's old compass. To complete it, she must journey through the city's forgotten in-between places with a most unlikely guide: a paper crane who can only fly backward. A tender story about the courage to step into the unknown, and the surprising wisdom that lives in the spaces between where we've been and where we're going.