Grenot

Grenot is the starting NPC of the quest The Canary Calls. He watches the entrance to the Thesead coal mines, making sure no one enters the gas filled caves. In the quest, he sends the player into the mine to find the source of the gas and get rid of it.

Location
Grenot is located in front of the entrance to the Thesead Mines. You can get there by following the signs pointing to the mines.