The necromancer had conquered a kingdom of these beings

Unwilling to question his good fortune, he gladly entered the citadel, which was significantly warmer. In the hallway ahead was a battered statue of one of the half-spider creatures. The building itself was of recent construction, but the statue was quite old. Come to think of it, he’d seen similar statues in the ancient ruins he’d passed through on his way north. The cold was slowing his wits. At a guess, the necromancer had conquered a kingdom of these spider-like beings, successfully converted them into undeath, and taken their treasures as the spoils of war. Exultation filled him. He would surely learn great things here. At the end of the hall, a gigantic creature lumbered into view: a grotesque mixture of beetle and spider. It approached him at a deliberate pace, and Kel’Thuzad observed that its towering body sported an even greater number of wounds and bandages.

Like the guards, it was undead, but its sheer bulk made him feel more frightened than impressed. He doubted he had sufficient skill to vanquish such a monster, much less raise it from the dead. The creature greeted him in a deep bass voice that reverberated within its ponderous body. Although it spoke perfectly understandable Common, the sound chilled him. Strange buzzing and clicking underlaid its words. “The master has been expecting you, archmage. I am Anub’arak.” It had both the intelligence and motor skills for speech–astonishing! “Yes. I wish to become his apprentice.”

The huge creature simply looked down at him. Possibly it was debating whether he would make a tasty snack.He cleared his throat nervously. “May I see him?” “In due time,” Anub’arak rumbled. “Thus far, you have devoted your life to the pursuit of knowledge. An admirable goal. Still, your experiences as a mage cannot have prepared you for serving the master.” What could have inspired such a speech? Did the majordomo consider Kel’Thuzad a rival? That was a misconception to dispel as soon as possible. As a former member of the Kirin Tor, I have more magic at my command than you could probably imagine. I am more than prepared for whatever tasks the master gives me.