Oh poop, I expected Sunken Empires to have more maps of sunken cities and similar. Instead it's got your excellent map and then a bunch of 3rd edition rules that are completely irrelevant to anything I want. Whoops.

It does have some nice new art for aboleths that I can make into tokens I guess :S

The whirlpool is very nice though, I'll definitely have to think of a use for that.