From the Introduction: Tales of the 13th Age adventures are normally arranged as six sessions of two hours each. This game is a single four hour adventure designed so it can be split into two weeks by the GM (or as a four hour holiday special). The Folding of Screamhaunt Castle is a seasonal Halloween adventure, slightly tongue in cheek. It pays homage to the haunted house tradition from the high camp of Rocky Horror Picture Show and Clue to the chills of The Haunting of Hill House, 13 Ghosts, and Red Rose.