He touched the front of the door. The stone under his fingers was cooler by far than the hot air that filled the corridor.

Q'arlynd nodded down at the stonefire bomb. "That isn't going to work."

"That's what I told them," Baltak boomed.

"We've proved one thing, at least," Piri said. "The stone that makes up that door exists in some sort of extradimensional space. Each time the stonefire started to reveal the far side of the door, it extended farther."

Alexa picked up a wooden tray and began sorting through the glass vials it held. "I tried several different acids on the door itself, but none made even the slightest mark."

"Frost won't crack it, either," Baltak boomed. He slapped a hand against the door. His fingers ended in claws, clear and glistening as ice. They scritched against the door as he drew them across it. "The stone can't even be scratched."

"There are patterns," Zarifar said. "I tried to identify them, but I can't quite…" His fingers traced lines in the air. "They seem so familiar, and yet…" he shrugged and let his hand fall, "they elude me."

"Excellent!" Q'arlynd announced.

The others stared at him blankly.

"Listen to you-you're working together. Well done."

His students glanced sidelong at one another when he said that-wary that he'd been talking between the lines. Had they let down their guard, shown some vulnerability, done something wrong?

Q'arlynd chuckled. "Well done," he repeated. "And I mean just what I say."

It was the truth. Leaving his apprentices on their own had been the best move he could have made. Had he remained there, he would have directed their experiments, led them along by the nose like rothe. Instead they'd tried to come up with solutions on their own. Fruitless attempts, but attempts just the same. Their initial decision to work together might have been motivated by a desire to keep an eye on each other, but that didn't matter. They'd become a team.

And since Q'arlynd knew how to open the door, they'd reap the rewards.

The anticipation nearly made Q'arlynd giddy.

He realized he was smiling. He set his face in a more serious expression. A smile could be an unnerving thing, to a drow. It usually preceded some sort of painful punishment.

"Eldrinn," Q'arlynd said, "your staff. It's time to open this door."

"You really think the staff is the solution?"

"We'll know that soon enough."

"I can't believe it!" Baltak shouted. "Q'arlynd knew how to open it, all along."

"Why didn't you tell us?" Piri asked, his voice thick with suspicion.

"It was a test," Q'arlynd answered, "of your willingness to work together. You passed."

He took the staff from Eldrinn. As the others crowded around, he closed his eyes. It took a moment to block out the rustles of their clothing, and their rapid, anxious breaths, but soon he achieved full concentration. He drew the staff toward himself and touched his forehead to the crystal at the center of it, just as Daffir had done.

"Show me the past," he whispered. "Show me how the Miyeritari opened this door."

Despite Q'arlynd's concentration, he heard Alexa's surprised murmur, "It can do that?"

Q'arlynd waited several moments, but nothing happened. No visions popped into his mind, no voices whispered in his ear. He tried for several moments more, with his eyes open. Nothing.

Heat prickled his cheeks. Daffir had never uttered a word when using the staff, but perhaps there was some silent mental command that was required. Eldrinn had assured Q'arlynd there wasn't, but knowledge of the command may have been stripped from the boy's mind by the feeblewit spell.

Q'arlynd felt a mind tickle his-probably Baltak. Q'arlynd pushed whoever it was out. "Don't distract me," he growled. "I'll show you how it's done in just a moment."

He decided to test the staff. Silently, he implored it to show him a vision, from just a short time ago, of the arrival of himself and Eldrinn. A vision instantly coalesced in his mind: the pair of them, stumbling out of a thick pall of smoke. Elated, Q'arlynd banished that vision and concentrated harder, trying to force his mind back to the distant past. Centuries ago. Millennia. He caught a fleeting glimpse of a brown-skinned elf, standing in front of the door, hand raised. Then the Faerzress crackled across the vision, obscuring it in a blaze of blue-green light.

"Spit me on a lance," Q'arlynd whispered fiercely.

He glared at the nearest wall. The Faerzress wasn't strong enough-yet-to block divinations entirely. But it wasn't allowing him to maintain the concentration he needed to reach so far back into the past.

Q'arlynd's palms were damp with sweat. The voidstone, obviously, had not yet been destroyed. Had his decision to part ways with the priestesses been a terrible mistake? Were Leliana and the others lying dead atop the Acropolis, even then? If so, the Faerzress there would continue to brighten, eventually rendering all divination impossible. If Q'arlynd had remained at the Acropolis and blasted a few of the Crones with his spells, might the priestesses have prevailed?

"What's wrong, Q'arlynd?" Eldrinn asked.

"Nothing," Q'arlynd said tersely. Irritation flared inside him at the fact that Eldrinn, a mere boy-an apprentice-had been able to pluck the necessary vision from the past when Q'arlynd couldn't. But that had been nearly two years ago, prior to the Faerzress. He…

Just a moment. Q'arlynd didn't need to look back to the time of ancient Miyeritar. Kraanfhaor's Door had been opened much more recently than that. Eldrinn had opened it less than two years ago. And Q'arlynd himself had opened it even more recently than that.

He closed his eyes again and concentrated. Show me myself, opening the door, he silently commanded the staff. Show me how I did it.

The Faerzress still impeded the divination, but it didn't obscure it entirely. Q'arlynd watched, fascinated, as an image of himself appeared. The vision-Q'arlynd had a kiira on his forehead, and was walking toward the door. It was odd, observing himself-and a little unnerving, to see the glassy look in his own eyes. The kiira had been utterly controlling him. He watched intently as the vision-Q'arlynd stepped up to the door, raised a hand, touched a finger to the massive block of stone and…

The vision-Q'arlynd bent forward and cupped a hand over his moving fingers, blocking Q'arlynd's view of his hand.

The kiira had anticipated that someone might be watching.

Q'arlynd took a deep breath, steadying himself. It didn't matter. He could still solve the riddle by observing Eldrinn. There had been no kiira on Eldrinn's forehead, the first time he'd opened the door.

He tried again. Show me Eldrinn, he silently commanded the staff. Show me the first time he opened Kraanfhaor's Door.

In his mind's eye, Eldrinn appeared, standing in front of Kraanfhaor's Door. The boy was wearing different clothes, and was holding the staff. Another male-the soldier Q'arlynd had found dead on the High Moor-stood next to Eldrinn. The fellow was going to die soon but didn't know it, poor wretch.

Q'arlynd shoved the useless sentiment aside and concentrated on Eldrinn. He watched as the boy held the staff to his forehead, just as Q'arlynd was doing. After a moment, Eldrinn laughed. His hand moved up to the door, his finger traced a sign.

Q'arlynd leaned forward expectantly but could see only a portion of the sign, the same sequence they'd glimpsed during their experiment with the chitine. The rest was hidden when the soldier stepped up next to Eldrinn, blocking Q'arlynd's view.

The vision faded.

"Well?" Baltak boomed.

"I'm making progress," Q'arlynd snapped.

He stood, thinking. If he shifted position, to the opposite side of the vision-Eldrinn, he might be able to see the entire sign. He strode to that side of the door and summoned up the vision again. He peered intently through the obscuring blur of faerie fire as the vision-Eldrinn went through the same motions, walking up to the door, touching the staff to his forehead, and tracing his finger along the door.