This quest will not start immediately upon completion of the last one. It will appear in your Quest Tracker some minutes after you leave Beryl's Breach.
The only place this mixture of mobs is seen is in the middle of the zone. Key on the Hounds and, by the time you have 10 of them you should have all the others finished.
Easiest way to get this done is probably to wait for Early Airdrops (13:00) or Late Airdrops (22:00) to start and join in. You should easily complete this task by the time the Airdrop is over.
This page last modified 2014-05-18 16:19:51.