Accept "Improved Quality" "Vengeance on the Northspring" "Dark Heart" "Strength of Corruption"

Make Camp Mojache your home.

Hearth to Camp Mojache, turn in Hippogryph Muisek, get the follow up.

Finish it, turn it in, get the follow up.

The treants actually spawn all over the zone. However, I choose to grind away at the hippogryphs, killing the occasional treant that happens to wander by. The hippogryphs are good xp and drop really good vendor trash. Either way, once you finish Treant Muisek, turn it in and get the follow up.

come here and start the chicken escort quest. If you didn't find it, don't sweat it.

While doing this quest you should get an item called "Perfect Yeti Hide", which starts a quest. If it doesn't drop before you're done with Improved Quality, grind the yetis until it drops.

While doing Vengeance on the Northspring, you should have gotten a Horn of the Hatecaller. Come to this location and blow the horn to summon Edena. She's a level 50 elite, so drink pots beforehand, use scrolls and blow cooldowns.

Zapp the giants, which makes them non-elite and very manageable. After they die you can collect the Muisek from the mini-giants for Mountain Giant Muisek.

Hearth to Camp Mojache and turn in everything. Accept "Weapons of Spirit" and turn it in to him again. Then go to Tanaris and start circuit 2.