" We went down the mysterious stairs that couldn't possibly be there, of course. Who wouldn't go down an impossible staircase in the bottom of a trunk? We were twelve. We were curious, and angry with our parents, and angry with each other. . . . The door slammed shut behind us. We couldn't have gone back if we'd wanted to--and we didn't want to. We were twelve. We were going to have an adventure if it killed us. "

― Seanan McGuire , Every Heart a Doorway (Wayward Children, #1)