Master of Elixirs (2)

Objectives
Go to the Black Morass in the Caverns of Time and obtain 10 Essences of Infinity from Rift Lords and Rift Keepers. Bring these along with 5 Elixirs of Major Defense, 5 Elixirs of Mastery and 5 Elixirs of Major Agility to Lorokeem in Shattrath's Lower City.
 * Essence of Infinity (10)
 * Elixir of Major Defense (5)
 * Elixir of Mastery (5)
 * Elixir of Major Agility (5)

Description
I've devoted my life to perfecting my elixirs. Despite my success, I haven't been able to create an elixir of eternal life.

I think I know the reagent I'm missing. I've heard of a place called the Caverns of Time in Azeroth where intruders known as rift lords and rift keepers phase in and out of the timeline.

This intrusive time-shifting creates tears in time itself, twisting it infinitely into crystallized essences. Bring these to me along with samples of your work and I'll teach you all I know.

Rewards
You will learn: Elixir Master

You will receive:
 * 21,640 XP
 * +250 reputation with Lower City

Progress
The essences! Do you have them?

Completion
You are very good with elixirs, if these are any indication. You will make a fine student.

These essences will provide me enough materials to formulate my recipe. I will be known among all alchemists for this discovery!

Now, if you're willing to learn, I am willing to teach.

Progression

 * 1) Master of Elixirs (1)
 * 2) Master of Elixirs (2)