Rise of the Fallen
Sleen are slender humanoids with sinuous bodies covered in mottled scales. Their heads and tapering tails are distinctively serpentlike, and forked tongues flicker from their mouths. They’re regarded as sneaky and magical, and are popularly conceived of as a collection of thieves, sorcerers, or both. Sleen do not have a homeland, but instead live among humans, alone or in small conclaves, getting by selling spells, thieving, and sometimes, adventuring.