Moria

Welcome to the Mines of Moria; as you may recall from the book Lord of the Rings the Mines are the ancient home of urin's folk, the dwarves. Long deserted, the Mines contain old hoards of jewels and gold guarded by the ancient and evil terrors of the earlier ages.

You will find yourself inside, and your problem will be to get out alive. The only way out is to arrive at the exit (wherever that is) carrying Durin's Ring - the last of the Seven. You first have to find the Ring.