S2E78 - The Girl Who Drew the Map and the Seventh Door

In the attic of the Hollow, Luna stands frozen as a younger version of herself—perhaps eight years old—sits cross-legged on the floor, drawing with crayons. The girl says she has been waiting for Luna since before she was born. Luna plays a cassette titled 'The Seventh Door' and learns that the Hollow was built around a single secret: a child who was never supposed to exist. The girl shows Luna a map of seven doors, each labeled with a name from the photograph. The final door is marked with Luna's own name, and the girl says that if L...