Parallel plotlines, one told in text and one in art, inform each other as a young girl unravels the mystery of a ghost next door. Mary is an orphan at the Thornhill Institute for Children at the very moment that it's closing down for good. But when a bully goes too far, Mary's revenge will have a lasting effect on the bully, on Mary, and on Thornhill itself. Years later, Ella moves to a new town where she has a perfect view of the dilapidated, abandoned Thornhill Institute. Determined to befriend the mysterious, evasive girl she sees there, Ella resolves to unravel Thornhill's history and uncover its secrets. Ella's story is told through striking, bold art; Mary's is told through diary entries. Each informs the other until the two eventually intersect to reveal the truth behind Thornhill's shadowy past, once and for all. Strikingly told and masterfully illustrated, Pam Smy bends genres and expectations alike.