#Dungeon23 Tomb of the Vampire Queen, Level 11, Room 11

 Encounter Area 11 also features a monster who has just arrived from a swirling portal.

This monster is a Type II Demon, also known as a Hezrou. It is a large frog-like demon. The portal was not like a summoning gate, so no magic circle and the demon is free to move around as it needs.