Run back down near the outhouse at (65, 62) and get the last of your geologist kills if you need them and turn in “Caught!” at the outhouse, accept “Ledger From Tanaris” and grab the book he slips you under the door.
Run down to (71, 72) and kill Margol the Rager, and grab Margol’s Horn off him which starts “The Horn of the Beast” This gives you the searing gorge key, useless now that there is a FP here but good XP
Go up the ramp and stay right until (40, 35) kill the boss here for “WANTED: Overseer Maltorius” and grab “What The Flux?” on the rail behind him. If you can’t find a group have the pet get the aggro and run the guys away from the plans. This is doable with 2 people but very tough. If you can’t get this quest done no big deal but I usually get it done.
Kill the elites 1 by 1 on your way up to the lava pit at (29, 25) and clear the mobs around it, the idolators don’t chain link and don’t attack when you touch the rock in the center. Jump on the rock either with mount or jump in lava then on it. Open it for “Release Them”
While killing these guys around the pool you should have found a Symbol of Ragnaros for “The Flame’s Casing” if not kill until you do
Make sure you talk to the caged npc next to the lava, he gives you “Prayer to Elune pt.1” Listen to his short story and turn it in for “Prayer to Elune pt.2” Now you have to kill these for the Rag dropping and the Prayer of Elune, Easy drops