This is one of the Orgrimmar daily fishing quests, which can be used to improve fishing skill as well as contribute towards several Achievements.
Fish up a Blind Cavefish from the Pools of Vision in Thunder Bluff. Once you catch a cavefish, fillet it and check if it swallowed the ring.
One of the Forsaken from the Pools of Vision came to me and said he'd lost his ring to a blind cavefish in the waters there.
Or perhaps it was his finger. It was hard to tell; his jaw did not move and his Orcish was no better than mine.
In any case, I thought it would be a kind gesture towards our unusual visitors to catch and gut cavefish until the ring - or finger - was found.
Would you help?
You haven't seen a ring about, have you? I think one of the cavefish might have swallowed it...
You found my ring, did you? I'm most grateful.
To be honest, I've no idea why I keep the thing. I'm not even certain how I acquired it... I suppose I am simply a creature of habit.
Still, as I said, I am grateful. Say... I found these things while searching for it myself. Perhaps they'd be of some use to you?
Patches and hotfixes Edit
- Patch 4.1.0 (26-Apr-2011): Added.