“What?” Chaven seemed lost in a kind of dream, one that did not easily let go. “The kulikos stone? No, not unless you knew the spell that gave it life and power, and that would have needed more than words.”

“More than words?”

“Such old wisdom, that men call magic, does not work like a door lock that any man can open if he has the key. Those among your people who work crystals and gems, do they simply grab a stone and strike it and it falls into shape, or is there more to the skill than that?”

“More, of course. Years of training, and still often a stone shatters.”

“So it would be even if you held the kulikos in your hand right now and I told you the ancient words. You could say them a hundred times in a hundred ways and it would remain nothing but a lump of cold stone in your fingers. The old arts require training, learning, sacrifice—and even so, the cost is often greater than the reward…” He trailed off. When he spoke again his voice shook. “Sometimes the cost is terrible.”

Chert put a hand on his shoulder. “We are coming near to the bottom of your house. We should go quietly now. If they have not found the lower door they might still hear us through the walls and come looking for what makes the noise.”

Chaven nodded. He looked drawn and frightened, as though after telling the story of his childhood terror he had never managed to shake it off again.

Two more rough-hewn corridors and they stood in front of the door, which was as strange a sight as ever in this empty, untraveled place, its hardwoods and bronze fittings polished so that even the dim coral light raised a gleam. Chert suddenly wanted to ask whether Chaven had actually stepped out into the passage from time to time to clean the thing, since none of his servants had known of its existence, but he had to be quiet now until they learned who or what was on the other side.

Chert stared at the featureless door. It had no handle or latch or even keyhole on this side, nothing but the bellpull—and clearly they were not going to use that.

The physician tugged at his sleeve to get his attention, then made a strange gesture that the Funderling did not immediately understand. Chaven did it again, waving his bandaged fingers with increasing impatience until Chert realized that Chaven wanted him to turn around—that there was something the bigger man did not want him to see. It was impossible not to feel angered after all they had both been through, after he and Opal had given Chaven the sanctuary of their home and nursed him back to health, but now was not the time to argue. Chert turned his back on the door.

A quiet hiss as of something heavy sliding was followed by the chink of a lifting latch; a moment later he felt Chaven’s touch on his shoulder. The door was open, spilling a widening sliver of light out into their passageway. Chaven leaned close, urgency on his face—he looked like a starving man who smelled food but did not yet know what he must do to get it. Chert held his breath, listening.