The Ranger Lord's Behest Travel to the northern borders of the Eastern Plaguelands and recover the Quel'Thalas Registry. The item is somewhere in the Quel'Lithien lodge.
You must also slay 8 Rangers, 8 Pathstriders, and 8 Woodsmen.
Searing Gorge Alliance & Horde
Incendosaurs? Whateverosaur is More Like It Hansel Heavyhands wants you to kill 20 Incendosaurs
You will find Incendosaurs occupying the lava pools inside the Slag Pit. The Slag Pit can be found in the Cauldron of the Searing Gorge.
Return to Hansel Heavyhands in the Searing Gorge when you have killed enough Incendosaurs.
A Matter of Time (needs reward) Use the Temporal Displacer near one of Andorhal's silos and uncover Temporal Parasites.
Slay 15 Temporal Parasites, and then return the Temporal Displacer to Chromie in the Andorhal Inn, Western Plaguelands.
Western Plaguelands Horde Quest
All Along the Watchtowers (Horde) Using the Beacon Torch, mark each tower in Andorhal; you will need to stand in the doorway of the tower to successfully mark it.
Once all four towers are marked, return the Beacon Torch to High Executor Derrington at the Bulwark, Western Plaguelands.
Into The Maw of Madness - (Step 2) Commander Mar'alith at Cenarion Hold in Silithus wants you to find his beloved Natalia. The information that you gathered points to Hive'Regal in the south as being the area in which you may find Mistress Natalia Mar'alith.
Do not forget to visit the dwarves at Bronzebeard's camp before venturing into the hive. They might have some additional work and advice for you.
And [Name], remember the Commander's words: "Do what you must..."
Dire Maul Alliance & Horde
The Madness Within You must destroy the guardians surrounding the 5 Pylons that power the Prison of Immol'thar. Once the Pylons have powered down, the force field surrounding Immol'thar will have dissipated.
Enter the Prison of Immol'thar and eradicate the foul demon that stands at its heart. Finally, confront Prince Tortheldrin in Athenaeum.
Return to the Shen'dralar Ancient in the courtyard should you complete this quest.