Gitrog

A giant toad like creature, in Lake Baratok .
It has settled there, driving fish away (or eating all the fish). The fisherman Blutto Krogerov tried feeding Arabelle to Gitrog, whether under mind control, or in order to try and feed it and thus it would move on from his fishing patch.
Features:
Fire resistant
Immune to non magic damage
Immune to psychic damage
Big
Long tongue that can grab and pull
Possibly can mind control - made Blutto attack Ichabod after he saved his life
Can swallow Medium creatures.
Currently has Ichabod inside him (session 46)