He's so huge, I was in Grizzly Hills killing Syreian the Bonecarver when NPCScan went off for him. That's right, GRIZZLY HILLS!
I got so confused, I started flying immediately. I mean, I even had him targeted! Of course, since he spawns in Icecrown, I couldn't see exactly where he was at yet.
About halfway across Zul'drak I thought to snap a picture for all of the doubters out there:
As you can plainly see, I have him TARGETED, he's at full health, and I'm still in Zul'drak. I still have to go through The Storm Peaks to get to him!
Alas, as I made my approach to Icecrown from The Storm Peaks, his health bar turned gray and started to diminish. He was dead by the time I got to him. *Sigh!
Told you he is huge.