This quest is not available in game.
Find Prospector Ryedol and let him know Hammertoe Grez is alive.
<There is text roughly scribbled in chalk on the map.>
They're taking me to Uldaman. Send help.
You will also receive:
- 1,650 experience
- 10 20 (if completed at level 90)
- 75 reputation with Ironforge