The World of Warcraft is an expansive universe. You're playing the game, you're fighting the bosses, you know the how, but do you know the why? Each week Matthew Rossi and Anne Stickney make sure you Know Your Lore by covering the history of the story behind World of Warcraft.
We've talked about the tol'vir before Cataclysm launched. While what we learned about them then was tantalizing, what we've learned about them since has helped develop our understanding of them quite a bit. Proud, ritualistic, formal, feral, the tol'vir are a race bound by their ancient task and pinned between their duty and their desire to return to a state of existence they see as more perfect than the one they currently inhabit.
The last remaining bastion of free tol'vir on the surface of Azeroth is the mysterious land of Uldum. Created eons ago by the Titans, Uldum is part of the planetary monitoring system that once girdled the ancient continent of Kalimdor alongside Ulduar and Uldaman. While Ulduar seems to have been intended to imprison the ancient Old God Yogg-Saron, and Uldaman perhaps served as a manufacturing center for earthen (although it may also have served other purposes), Uldum's purpose was linked to Ulduar in a very real and direct way. Ulduar was where Algalon would come to make his judgment about the fitness of the Azeroth experiment if the prime designate Loken was destroyed. And Uldum?
If one thinks of Algalon as the means by which a world is judged, then think of Uldum as the executor of his will. Ulduar is where Azeroth would have been condemned, and Uldum is how the sentence would have been carried out. The tol'vir of Uldum, therefore, have the most important task of all the Titan's creations, as they maintain the world-destroying engines and keep their power out of the hands of those who might otherwise use them. Unfortunately for the tol'vir, those who would undo the Titan's work for their own ends have often subverted or corrupted these last guardians of Titanic secrets in order to gain access to what they guard.