I "converted" this adventure to the Fate Core RPG system and ran it for a teen group as part of a dark fantasy, short campaign comprised of several haunted houses linked together. The main idea was chaos entering the world in the form of several evil gemstones which needed to be found and destroyed. It was a very good, creepy adventure with a fun puzzle inserted that the teens enjoyed very much. It is better for older, not younger, teens. My only beef is that the "player map" shows the secret doors. I had to photoshop this out. All-in-all great purchase.