Absolute BANGER of an adventure.
Presents a creepy, intricate puzzle for the players to solve - and a crisis that gets progressively worse! So endless debate over the correct course of action is NOT an option.
Runs surprisingly fast - I usually get through it in about 3 hours. (I have the situation escalate when dramatically appropriate, rather than after a designated amount of time has passed.) And the handouts are great and really useful.
I am very interested in getting all of Norgad's other adventures to the table!