Return Pet to Owner Quest
From AEWiki
This Quest can be found all over the Isle of Krythan. If a dog, wolf or other animal seeks assistance, its usually one of the following scenarios.
[edit] First Scenario
The lost pet is wearing a collar which gives you the name of the owner and the town in which he or she resides. Upon returning the animal (within an unspecified time limit), you receive 3,000 epool. You may also receive one of the following items:
Note: This list is very likely incomplete...
[edit] Second Scenario
This variation is trickier than the previous, as the pet appears to be a stray - he has no collar. This leaves you to search all of Krythan, talking to any and all NPCs until you find the owner. Once the owner is found within an unspecified time limit, you receive 3975 epool as well as a trinket, usually a pendant or amulet.

