[Taqwus]

Ermor's your regular "living dead" nightmare nation, probably heavily influenced by AD&D which in turn drew from a variety pack. Mummies were popularized from Egyptian-themed horror, banshees stem from the Celtic 'ban sidhe', ghosts and walking dead probably are multicultural.

Abysia seems to be a "hell"-themed demon-worshipping setup. The winged, pitchforked demon's associated most with Christian fire-and-brimstone imagery; blood sacrifice would be a common theme among accusations relating to demon-worship.

Oh, and Cthulhu -- might also want to read the "Call of Cthulhu" story, 'natch. And I wonder if we'll get shoggoths, hmm. Tekeli-li! Tekeli-li! *shudder*