The sahuagin, often called the Sea Devils, dwell in every fantasy setting and provide a great source of mystery for players. Lurking beneath the waves along many coastlines, the sahuagin launch devastating raids before retreating back to their sea kingdoms. Players must stand ready to defend coastal towns and follow the Sea Devils back to their lair to end the threat once and for all in climatic undersea battles. The Slayer's Guide to Sahuagin expands this race as never before, introducing never-before-seen background information, as well as new spells, sahuagin-only prestige classes and feats, as well as detailing the deadly Royal Guard.