Besides the 2E "The Sea Devils" which of those sources has good info on Sahuagin? They are my primary antagonists (of course).
The Sea of Fallen Stars was essentially an entire underwater campaign set in the eponymous region in FR during AD&D period. While ruleswise it was weak, it certainly has a lot of material for inspiration on the societies of underwater races.
U3 The Final Enemy and the 1AD&D Monster Manual. U3 is all about them and is their first appearance in D&D. MM has over a page on them as monsters.Besides the 2E "The Sea Devils" which of those sources has good info on Sahuagin? They are my primary antagonists (of course).
Okay, so it's not a gaming book, but I find this one invaluable: [ame="http://www.amazon.com/Ocean-American-Museum-Natural-History/dp/0756636922/ref=pd_bxgy_b_img_b"]OCEAN[/ame]What are the better 3.0/3.5 era undersea oriented books?