In Unending Numbers

Objectives
Disable the three demon portals, then slay Peroth'arn.
 * First portal disabled
 * Second portal disabled
 * Third portal disabled
 * slain

Description
Between us and the Dragon Soul lies a legion of demons. They will have to be dispatched before we proceed.

If my timing is correct - and it usually is - a young night elf named Illidan Stormrage should be crossing our path shortly. He will undoubtedly be of some use when it comes to demon hunting.

Help Illidan disable the demons' portals, then slay their leader, Peroth'arn.

Progress
You should temporarily lay aside any prejudices you may carry against Illidan. Remember, you are ten thousand years in your past, and he must not be punished for any future crimes.

Completion
Good. We march on.

Rewards
You will receive:

Progression

 * 1) The End Time
 * 2) Murozond (quest)
 * 3) The Well of Eternity (quest)
 * 4) In Unending Numbers
 * 5) The Vainglorious
 * 6) The Path to the Dragon Soul