Dawn of the Overmind (Accessory) by Bruce R. Cordell; Paperback - 64 pages; 1998; TSR Inc.; ISBN: 0786912111

Evil Tide (Accessory) by Bruce R. Cordell; Paperback; 1997; TSR Inc.; ISBN: 0786906782

Eye of Doom (Accessory) by Thomas Reid; Paperback; 1996; TSR Inc.; ISBN: 0786904275

I, Tyrant (Accessory) by Aaron Allston; Paperback; TSR Inc.; 1996; ISBN: 0786904046.

This accessory describes all varieties of beholder and beholder-kin, the "eye tyrants." Included are details on their society and psychology, their varied eye powers, and new magic items specific to the beholder races.

The Illithiad (Accessory) by Bruce R. Cordell; Paperback; TSR Inc.; 1998; ISBN:0786912065. 

This accessory describes the race of mind flayers, the illithids. Included are new illithid-kin, undead illithid, and "flayer-kin monsters"; details on their society, psychology, history, theology, and anatomy; full description of an illithid community; their psionic powers in detail, with new abilities; their origins and future plans for domination of the multiverse, and new magic items for the illithid race.

The Sea Devils (Accessory) by Skip Williams, Keith Francis Strohm, and Steve Winter; Paperback; TSR Inc.; 1997; ISBN: 078690643X.  

Sea of Blood (Adventure) by Bruce Cordell, John Rateliff (Editor); Paperback - 64 pages; 1998; TSR Inc.; ISBN: 078690772X