The Rider and his Mount

Warg-riders make their way through the mountain-crags and slip into and out of the shadows of Moria with ease. At the Grand Stair, a leader and his aged mount have come to bend knee to Igash the Fanatic and Mazog.

Description
Stage 1
Stage 2

'One by one, the Orcs travelled up the hallways towards the entrance to the Grand Stair. At their head, riding a Warg scarred by many battles, rode a banner-bearing goblin. I heard his name echoed from the forces as they cheered, seeing the entrance to their new home.

'Their tribute rested on litters dragged by other Warg-riders. Glothrok the Vile, a scourge of the Misty Mountains and leader of the Warg-riders, entered at their head.

'Never have I seen such a terrifying beast ridden by so confident a goblin. They must be destroyed, and to accomplish this, you must enter the Grand Stair, north-east of the Orc-watch.'

Glothrok the Vile is within the Grand Stair, north-east of the Orc-watch.

Thithrand seemed unnerved at the sight of a powerful goblin riding an even more powerful-looking Warg. The pair entered the Grand Stair at the head of the Warg-riders and have not been seen since.