Sssslio

From Tourmaline

Sssslio's followers worship snakes. Or perhaps Sssslio is a snake. Of maybe Sssslio is just a sound they make.

In any case, Sssslio's temple is pretty creepy, and the uninvited are not allowed within. It also seems to be nocturnal.

Oddly, Sssslio's temple in Tourmaline has the great carving of a Dove above the main doors, although there is a lot of snake iconography added around it.