Arena is a strange structure found in one of the deep, lava-filled cavities under the Northen Ridge Mountains.
It is full of Dwarven artifacts, but it wasn't build by the Dwarves. It's atypical in every way and its purpose is not clear either.
It consists of three levels. Rat scouts reliably infromed that atop of the structure Nurgemon has made his home.
Dax will have to blast through and clear each level to get to Nurgemon, defeat him and recover the Magnificator.
The lights and torches were only recently lit, no doubt by Spiders presumably to attract prey, which would indicate that the Magificator also increased their inteligence. Bad news all around...