Is warrens a zone added with epics or velious? I have found some information that says it comes in during kunark. Here are some quest links from ZAM.
http://everquest.allakhazam.com/db/q...tml?quest=1286
http://everquest.allakhazam.com/db/q...tml?quest=1284
http://everquest.allakhazam.com/db/q...tml?quest=1281
3 quests in Stonebrunt with Kunark tags. And Stonebrunt is added with Warrens, if memory serves.