The creature seemed to be a monstrous fusion of man and giant rat, with some body parts being rat, and others being human. The half man half rat stood, turned, and attacked the Necromancer that created it.
The Necromancer cast cloudkill on his creation, filling half the room with a large cloud of poisonous gas. The Crew managed to back out of harms way and attack the Necromancer at range.
After a few more attacks, the necromancer fell upon his table, spilling acids and concoctions that began melting his flesh. The cloud dissipated, and the crew found the rat-man creation collapsed upon the floor.
Justin immediately ran forward and helped the creature. He assessed the being’s condition, helped it drink some water, and finally cast Cure Wounds to get him back to his feet.