1) Did you create the creatures specifically as a submission to the Fiend Folio or were the created for your own personal campaign? Both! I was involved in a rather weird (and long running campaign) at the time; no one of us GM'd the whole time. Rather, we tended to take it in turns, in different parts of the universe. I created those races for some long- forgotten reason (Orcs just didn't cut it on the ethereal plane ) and used 'em. At the same time, I mailed them to Iain Turnbull, who was then editing the Fiend Factory column in White Dwarf. Way back in the mists of the 1970's, White Dwarf (British gaming magazine) and the Games Workshop (who publish it) hadn't been taken over by the Citadel Miniatures crowd and turned into a marketing vehicle for their spiky space wombles; the Fiend Factory column focused on new, useful monsters for D&D. Somehow the Githyanki struck a nerve and he asked me to submit an expanded version for the Fiend Folio.