Gary Gygax wrote Artifact of Evil as a continuation of his first novel , Saga of Old City .
Artifact of Evil was published in 1986 as the final novel under TSR 's Greyhawk Adventures banner that was written by Gary Gygax .
Gary Gygax wrote Artifact of Evil as a continuation of his first novel , Saga of Old City , and it was published in 1986 as the final novel under TSR 's Greyhawk Adventures banner that was written by Gygax .