Use the Plaguehound Leash near the plaguehound cages at Vengeance Landing and look for clues at the location you're led to by the Plaguehound Tracker.
- Plaguehound Leash (Provided)
Now that this rascal's belly's full, maybe he will be more willing to cooperate. Here's his leash, just come get him from his cage whenever you're ready to take him.
I don't know what Anselm expects you to find, but look for clues wherever it is that the dog takes you.
You will also receive:
- 15,100 experience
- 90 (if completed at level 90)
- 150 reputation with Horde Expedition