2004 · ソースブック（プレイを拡張するルール／オプション）

Ssethregore: In the Coils of the Serpent Empire

This fantasy roleplaying sourcebook details the fallen Ssethric Empire and its surviving reptilian peoples, who dwell in the swamps and jungles of the Kraldjur Morass while waging war against the Elorii and Altherian Republic. It covers their history, culture, politics, religion, geography, and living technomancy, along with the underground Lavender Way and other harsh environments. The book adds reptilian adversaries, a new base class, 15 prestige classes, more than 50 feats, new spells, and a complete pantheon of ancient gods. It also provides details on the Ssethric egg clutches and several related species, including Hylis, Pleisaurans, and Ssanu.