Begin on your starting tiles on the Main Board and play per the rules of the original game. The major rules change in this expansion relates to Pits. In the original game, falling into a Pit caused you to land on the Main Board on the following turn. This is no longer the case in Shrieking Hollow. Instead, falling or leaping into a Pit on the Main Board sends you into The Hollow, the new side board. Watched Keys deliver Keys to Prisoners in the same way as standard Key tiles do - however, entering a Watched Key tile immediately ejects all prisoners in the Hollow back to the Main Board. They have different graphics to remind you of this important difference.