It's a good, long walk, down the tunnel he crafted; after the three miles, they reach the abrupt end of the path, and, with a little effort, the crystal is soon floating in the air in front of him. It looks like a rather large piece of topaz, though it shines somewhat more brilliantly. It's about eight inches long, and three wide, a lovely shade of yellow. To his trained sense, he can sense nothing else unusual about it; no traces of magic, psionic, or divine power, nor any definite purpose to it. All he can tell is that's it's a very nice gemstone.