"No—but it's been disturbed—"

"Umm. More like something's been dragged on it. They may use it for the caravan goods—saves carrying. I'd rather arrive on my feet. We need another door."

Paks could see nothing but stone-walled passage. Arvid went over every stone with his long fingertips. The others fidgeted; Paks shushed them. Finally he tapped one section of wall and smiled. "This is the entrance. The trouble is that I don't know what's on the other side. They may have a guard right there—in which case, we're in trouble. It may be trapped to sound an alarm—I can't tell. But I judge it's a safer way down than that—" He nodded at the chute.

"Well—we have to try something," said Paks. "Can you tell which way it opens?"

"No. I don't think it will rotate, like an ordinary door. It should either come forward or sink in, and then slide sideways. I can't tell which." He looked at her, challenging. Paks was determined to figure it out for herself.

"Well, then—you're the one who can open it. I'll cover you, on your left side. The rest of you move three paces back and stay flat against this wall—you won't be hit by arrows, if there's an archer, and you can see how it works. Shield the candles with your hands, in case of a strong draft. Anything else?" She looked at Arvid. He shook his head.

"You've a feel for this, lady," he said.

She heard a click as he worked the mechanism. The stone before him sank back; faint light came through the gap. Soundlessly the stone slid to the left. Behind it was a landing; stairs went down to the left, where the light brightened, and up to the right. Across the landing was an alcove; four cross-bows hung from pegs. Paks moved quickly through the opening, and looked both ways. Nothing. She signed to Arvid, who nodded and motioned the others in. He did something to the touchstone lock, and murmured that he hoped he'd jammed it open. His eyes slid to the crossbows. Paks quickly cut their strings. The two quivers of bolts she simply took and tied to her belt.

Down toward the light they crept, stair by stair. Halfway down, Paks could see that a passage led away ahead and another to the right. She motioned those behind her to the right-hand wall of the stair. Now she could see a door, closed, at the foot of the stairs to the left. Arvid stayed in the lead, one stair before her. At the foot, he stopped a long moment to scan the passage ahead and the foot of the stair itself. The forward passage ended in another closed door not twenty paces away, heavy wood bound with iron. Neither hinges nor bars showed on this side. The light they had seen came from torches in brackets on both sides of the passage: four ahead, and obviously more to the right. The flame-tips bent toward the left-hand door, and even on the stairs Paks could feel the draft that kept the air fresh.