Serving this spectral being--this Lich King, as Kel'Thuzad was beginning to think of him--would assuredly bring Kel'Thuzad great power... and damn him for all eternity. But that knowledge came far too late. Besides, damnation had little meaning without the prospect of true death.

"I am yours. I swear it," he said hoarsely.

In response, the Lich King sent him a vision of Naxxramas. Small black-robed figures stood in a broad circle outside on the glacier. Their arms, visibly wreathed in dark magic, rose and fell in time with a droning chant that eluded Kel'Thuzad's understanding. Tremors shook the earth beneath their feet, but they kept casting.

You will go forth and bear witness to my power. You will be my ambassador to the living, and assemble a group of like-minded people to further my plans. Through illusion, persuasion, sickness, and force of arms, you will establish my hold upon Azeroth.

To Kel'Thuzad's astonishment, the ice shifted and cracked, and the top of a ziggurat pierced the frozen ground. A building was being pulled up out of the soil. While the robed figures redoubled their efforts, the vast pyramid continued its impossible emergence. Chunks of dirt and ice flew outward with explosive force. Soon the entire structure had broken free of the earth's embrace. Slowly but surely, Naxxramas rose into the air.

And this will be your vessel.