In Comics
House of Secrets #61 - Doctor-7, King Of The Supernatural / Eclipso, The Genius Who Fought Himself
The X-Men #49 - Who Dares Defy The Demi-Men?
Base
Not Available
Serval Industries, Virginia; formerly X-Factor Investigations Headquarters, Starjammer; Xavier Institute for Higher Learning, Salem Center, Westchester County, New York; Genosha; X-Factor HQ, Washington D.C., Maryland; Mutant Research Center, Muir Island;