The Mól-obsessed hobgoblin alchemist
Hobgoblin out of Draazstone who held his own blood to be Mól, kept by Beltran Grayeras
A hobgoblin out of Draazstone, and the fifth man in the slaver cave southwest of Haudh-Gwenn: not a slaver, not the merchant, not one of the hired guards, but the one working in the back rooms (S1E10). What survived of him after the fire was the workshop itself. Mikhail went through it once the flames were out and found a laboratory laid out by somebody who had never been trained by the Arcane Congress, which is the clearest thing anybody established about him.
Beltran Grayeras kept him. Ashtara Walnut’s phrase for the arrangement was that Beltran kept this other man on a leash, and her account of the man himself was that he believed his own lineage made him Mól and carried himself accordingly. She was not certain whether he was normally housed at the estate or at the cave, and she could not remember his name.