. . the main tunnel came to a sudden end—not against natural rock . . . but a wall of chiseled stones fit so tightly together there was not a crevice anywhere, not even for a spider. In the middle of that wall was a door sheathed in iron plate with three great hinges on the left side, and three massive bolts on the other rammed deep into its rock frame. Wycan eyed that gate intently. His way out at last?