The Barrens 20-21
Fly to Ratchet(2), once in Ratchet head north to "Ishamuhale". On your way here you need to kill a Zhevra for a 
Fresh Zhevra carcass. Place it under the dead tree(3) kill Ishamuhale when he comes out, and loot him for 
Ishamuhale's Fang. Now head south to "Guns of Northwatch" and kill Cannoneer Smythe(4) first, then Whesson(5) and Lastly Captain Fairmount(6). Inside of Captain Fairmounts tower you'll find Gilthares Firebough(6). Escort him back to Ratchet. Turn in both of your quests then fly to Thunderbluff. Here you need to turn in "Melor Sends Word" and "The Elder Crone". Also while you're in Thunderbluff accept "The Sacred Flame" and Magatha's Followup "Forsaken Aid" Turn in "Forsaken Aid" and grab "Journey To Tauren Mill."
Fly back to Camp T. Turn in "Ishamuhale" and accept "Betrayal From Within" from the Quilboar in town and "Enraged Thunder Lizards" From Jorn. Also if you dont already have it, grab "Weapons of Choice" from the smith. Head out of town to the east and kill Thunderheads(7) until you get 
3 Thunder Lizard Blood. Return to Jorn and refresh the quest. Then head to (8) for the Thunderhawk Hatchling. Also in this area kill Lakota'Mani for his quest item, He's a large grey kodo. Return to Jorn and refresh the quest yet again. Now head south to Owatanka(9). He's the large blue thunder lizard, he has two places that he can spawn, check both and kill him for his quest item.
Once Owatanka is dead head further south to "Egg Hunt"(10) Collect 
12 Silithid Eggs and hearth back to crossroads and turn in "Egg Hunt". Then fly over to Camp T and turn in those quests. When you're done fly to Org and hop on the Zeppelin. Head to Tarren Mill.