The Lexicon (Atlantis)

[2] In the 1980s a group of friends who played a customized version of Dungeons & Dragons — Vernie Taylor, Steven Cordovano, and Stephan Michael Sechi — decided to publish details of their home campaign and each put up $600 to form Bard Games.

The Lexicon, a 136-page book with a removable two-color map, was written by Sechi, Taylor, and Ed Mortimer, with interior artwork by Joe Bouza, Ken Canossi, and Roy MacDonald, and cover art by Scott Lee.

[1] In 1988, following the publication of a second edition of The Arcanum, Bard Press combined The Lexicon and The Bestiary into a single book, Atlantis: The Lost World.

The setting was a bit more unique, as it portrayed an antediluvian world of myth (though it also contained some off-key elements including typical fantasy races of D&D and even druids).

"[5]: 186 Appelcline also noted that Morrigan Press later "licensed the Talislanta setting from Stephan Michael Sechi and also bought the rights to two of his Atlantis rules books — The Lexicon and The Bestiary.