In order to do this quest you must have unlocked the Murlock (Mrrl) in Nazjatar.
How to unlock Mrrl vendor
To get access to his vendor you must complete the quest A safer Place. This quest is to escort him to your base. You find the quest at 48.43.
How to get 5 Dense Rocks
- Buy 105 Flatulent Fish from Grrmrlg (Shift + Right click and type the amount)
- Buy 15 Jar of Fish Faces from Hurlgrl
- Buy 15 Bag of Who-Knows-What from Flrgrrl
- Buy 5 Particularly Dense Rock from Mrrglrl
Other posts
- NEW Timewalking Mount and How to get it
- How to Farm LOADS of 418 (upgrade to 437) ilvl Gear BoE
- New Prime Gaming Reward!
- Get 428 + ilvl Gear every week for 5 weeks!
- Larodar, Keeper of the Flame Boss Tactics - 10.2 - Amirdrassil: The Dream's Hope
- Volcoross Boss Tactics - 10.2 - Amirdrassil: The Dream's Hope
- How to get 10.2 Head enchant - Incandescent Essence
- Ultra Fast Reputation Boost - The Dream Wardens - 10.2 - Dragonflight
- 4 skin colors on Flourishing Whimsydrake
- Weekly Quest Reward - 10.2