Question: Which American author of roleplaying games and fantasy novels, wrote the adventure module 'Gates of Firestorm Peak'?
Sentence (from "Dwellers of the Forbidden City"): The module was ranked as the 13th greatest "Dungeons & Dragons" adventure of all time by "Dungeon" magazine for the 30th anniversary of the "Dungeons & Dragons" game in 2004.
Relevant evidence: No