Development on the first ever World of Warcraft expansion - The Burning Crusade - continues at a feverish pace, and the dev team has released its first information on one of the new dungeons for the expansion. In this new preview you see screen shots of Karazhan - the tower of the fabled guardian Medivh - as well as background lore providing the first shadowed hints into the terrible dangers and mysteries that await adventurers:

Between Duskwood and the Swamp of Sorrows lies the desolate region of Deadwind Pass, where jagged, brooding spires of granite loom over petrified, lifeless forests. As its name suggests, it is a land devoid of life.

But it was not always so...

Medivh, the Last Guardian, made his home in Deadwind, in the bright tower of Karazhan. Though he was the greatest wizard of his day (and humanity's intended custodian) Medivh was secretly possessed by the dark spirit of Sargeras, the Destroyer of Worlds. Through Medivh, Sargeras opened the Dark Portal and allowed the orcs to wage war upon the mortal kingdoms of Azeroth.