This chapter offers detailed discussion of the transmediality of theme parks and how their narratives and experiences extend across media forms. It takes Disney’s Haunted Mansion as an extended case study, a ride which has been turned into a feature film, but has also seen its narrative universe expanded across comics and novelizations, board games, and video games. Despite the fact that the ride lacks a coherent story, fans have demanded a greater narrative to the ride, causing tensions between Disney and its fans. Introducing the concepts of spatial poaching and retrospective transmedia, the chapter focuses on how producers and fans co-construct transmedia narratives through physical spaces, and over extended periods of time.