I found a bigger picture of the front cover and it says: "The authorised and approved module based on Dray Prescot, created by Alan Burt Akers."Beneath The Suns on Amazon wrote:Beneath Two Suns Paperback – 1986
by Troy Denning (Author)
742 Presented by the editors of Role Aids for use with ADVANCED DUNGEONS & DRAGONS role-playing game. Adventure for 4-6 Characters of Skill Levels 6-8 "A flash of light and a crack of thunder wake you from a sound sleep. You realize that you are not in your room but are instead in a canal-riddled city where a political power struggle has reached its peak. As you sit in shock, a number of other people appear close to you, in the same manner you appeared. Make your way through dungeons and city byways, defeating city wardens and bizarre monster. If all goes well, you will become Jiktar in the land BEANEATH TWO SUNS." 32 pages
Wikipedia says there are 54 books in the Dray Prescot series.
Has anyone played Beneath Two Suns, or read any of the Dray Prescot novels?