To help clear up some of the apparent confusion on how to get these keys and what to do with them once you have them (assuming you're farming Consortium rep).
There are a couple of ways to get [item=29460].
1. Camp out in the prescribed area in the quest and kill mobs until it drops. This option is a grind.
Wowhead lists the [npc=23008] as having a 95% drop rate for the item, but he's a reasonably rare spawn, so you could be waiting a long time before you find him.
The next best drop rate is about 7% off other mobs in the quest zone.
Either way it's painful unless you get lucky.
2. Run Heroic [zone=3792]. One run should give you approximately 4 to 6 [item=29460]. Since you will be getting rep anyway, killing mobs in the instance - this seems a preferable option if you're farming rep with the Consortium.
Next, fly to the quest area and find the Ethereum Staging Grounds. Location 54.6 / 46.5 should put you in the right spot. Use the key(s) to open one of the pink bubble Ethereum prisons.
The mob that comes out of the prison will drop a [item=31957] with about a 98% drop rate.
Complete quest.
Once you hand in the quest it will turn into a repeatable quest Ethereum Prisoner I.D. Catalogue, which will give you approx 300 rep per turn in and also unlock the quest A Thousand Worlds.
TheWoWDB
