and updated for the fifth edition of Dungeons & Dragons. Four out of the seven were old Greyhawk modules: Against the Giants, The Hidden Shrine of Tamoachan, Tomb of Horrors, and White Plume Mountain. In addition the book also featured advice how to place the other adventures within the Greyhawk setting, or how to change the name-giving tavern Yawning Portal in Water Deep from the Forgotten Realms into the Green Dragon Inn from the City of Greyhawk. In May 2019, Ghosts of Saltmarsh was released for the fifth edition of Dungeons & Dragons. The book compiles new versions of classic adventures that are located around Saltmarsh in Greyhawk (The Sinister Secret of Saltmarsh, Danger at Dunwater, and The Final Enemy), or are generally naval themed. Unofficial Greyhawk sources Although TSR and WotC had each in turn owned the official rights to the World of Greyhawk since the first folio edition was published in 1980, the two people most responsible for its early development, Gary Gygax and Rob Kuntz, still had most of their original notes regarding the fifty levels of dungeons under Castle Greyhawk. Gygax also had his old maps of the city of Greyhawk, and still owned the rights to Gord the Rogue. After Gygax left TSR in 1985, he continued to write a few more Gord the Rogue novels, which were published by New Infinities Productions: Sea of Death (1987), City of Hawks (1987), and Come Endless Darkness (1988). However, by this time, Gygax was furious with the new direction in which TSR was taking "his" world. In a literary declaration that his old world of Oerth was dead, and wanting to make a clean break with all things Greyhawk, Gygax destroyed his version of Oerth in the final Gord the Rogue novel, Dance of Demons. For the next fifteen years, he worked to develop other game systems. But there was still the matter of the unpublished dungeons under Castle Greyhawk. Although Gygax had given glimpses into the dungeons in his magazine columns and articles, the dungeons themselves had never been released to the public. Likewise, Gygax's version of the city of Greyhawk had never been published, although Frank Mentzer believed the reason for that was because "the City of Greyhawk was a later development, originally being but a location (albeit a capital). As such it was never fleshed out all that thoroughly... notes on certain locations and