A powerful lizard has been killing dwarf-messengers. Gyrgir wishes you to lure the lizard out and end him.
'I have boiled down the slime and combined it with several herbs to make a potent powder. It smells very appetizing, but it is a powerful poison.
'Sprinkle it on the lizard-food in The Drowned Deep. At some point, Stonecrest should come looking to feast.
'When it has been weakened, you should be able to defeat it.'
The lizard-food can be found at The Drowned Deep, west of Hulwul-nefekh.
Gyrgir says that a powerful lizard, Stonecrest, often feeds on grodbog-corpses. He has crafted a powerful poison to sprinkle on the food. Once Stonecrest eats it, Gyrgir believes you may have a chance to defeat it.
Gyrgir is in Hulwul-nefekh, east of The Drowned Deep.
Gyrgir will be pleased to know his poison worked and that Stonecrest will devour no more dwarves.