Hórin believes you have seen the true threat of Glimmerdeep across the bridgeless chasm.
'Do you recall the chasm we found in the mine, ${PLAYER}? The bridge was out and we could not cross, yet on that far side, I thought I saw... no, I could not tell. Some great form. Far greater than an Orc, but up upon two legs, arms at its sides. Did you see it too?
'I know not what it was, and I fear to know the truth, but within my heart know that is what we must face, if we are to claim those mines.'
Join Hórin in 'Glimmerdeep'.
You will find the instance on the Specific tab of the Instance Finder panel, under the Grey Mountains section.