"I think," said Ciaran, "the next time I get married I'll ask more questions. Let's go."
They went down the ramp leading under the Forbidden Plains. The hunter led, like a wary beast. Ciaran brought up the rear. They both carried the stolen wands.
The hermit hadn't spoken a word, or moved a hand to help.
It was fairly dark there underground, but not cold. In fact, it was hotter than outside, and got worse as they went down. Ciaran could hear a sound like a hundred armorers beating on shields. Only louder. There was a feeling of a lot of people moving around but not talking much, and an occasional crash or metallic screaming that Ciaran didn't have any explanation for. He found himself not liking it.
They went a fairish way on an easy down-slope, and then the light got brighter. The hunter whispered, "Careful!" and slowed down. They drifted like four ghosts through an archway into a glow of clear bluish light.
They stood on a narrow ledge. Just here it was hand-smoothed, but on both sides it ran in nature-eroded roughness into a jumble of stalactites and wind-galleries. Above the ledge, in near darkness, was the high roof arch, and straight ahead, there was just space. Eventually, a long way off, Ciaran made out a wall of rock.
Below there was a pit. It was roughly barrel-shaped. It was deep. It was so deep that Ciaran had to crane over the edge to see bottom. Brilliant blue-white flares made it brighter than daylight about two-thirds of the way up the barrel.
There were human beings laboring in the glare. They were tiny things no bigger than ants from this height. They wore no chains, and Ciaran couldn't see any guards. But after the first look he quit worrying about any of that. The Thing growing up in the pit took all his attention.
It was built of metal. It rose and spread in intricate swooping curves of shining whiteness, filling the whole lower part of the cavern. Ciaran stared at it with a curious numb feeling of awe.