They were going to get one shot at this and that was it.

Better make it count.

They broke camp quickly and got under way, the knowledge that they were close to their destination spurring them on. In the light of day they were able to see that the density of the forest on the far side of the valley was not going to allow them to continue with the trucks, so supplies were transferred to backpacks that had been brought along for just such an eventuality and the group continued on foot. If all went according to plan, they would return to the trucks after finding the "voice in the earth" and figure out their next move from there.

They hiked upward into the trees for a couple of hours, taking a brief rest along the way to gulp down a cold lunch and rejuvenate their systems.

It was shortly after that that they emerged into a clearing about a third of the way up the mountain and were given the first chance they'd had to see what lay ahead of them since taking to the trees earlier that morning.

"There," Nambai said, pointing at a near-vertical wall of dark stone that loomed above the trees surrounding it a short distance away.

"The birthplace of the river is at the foot of that mountain."

He went on to explain how he had come here several years before, hunting eagle chicks to sell in the market in the city, and had seen where the river bubbled up from the base of the mountain, as well as where it diverged into three separate waterways shortly thereafter.

"How much farther is it?" Davenport asked, breathing a bit heavier than usual due to the exertion.

"Not far," the Mongolian said with a smile.

Apparently "not far" in Mongolian translated to "far enough that you'll want to strangle your guide for lying to you" in English. They climbed upward through the dense tree cover, using saplings to pull themselves forward when the trail, or lack thereof, became too steep.

Just when Annja's legs started screaming for release, the group emerged from the trees to see the river rushing past them perpendicular to their line of travel. Upriver to their left, the sheer face of the cliff wall rose from the forest floor like some looming giant, ready to squash them at the slightest provocation.

Nambai led them in that direction without comment.

Once they were close enough, they could all see that a raging torrent spilled out from under the base of that mammoth wall, bubbling up from somewhere deep beneath their feet. A few hundred yards downstream it split into three distinct rivers-the Onon, the Tuul and the Kerulen. They all had their common origins in that single waterway surging past their feet.

Davenport gathered the group around him and gave them their instructions. "All right, this is it. This is the place we've been looking for. I want you all to spread out and start looking around. We're searching for something referred to as the 'voice in the earth,' but that's all I can tell you about it, so look for anything unusual, any sign of human habitation, that kind of thing, okay?"

The rest of the team nodded their understanding, then split up and began covering the surrounding area. Wanting a little time to herself to think, Annja strode off on her own before anyone else could volunteer to accompany her.

She had to admit that she was surprised by the beauty of the place. After the drab colors of the plains and the scorched damage of the Restricted Zone, the green of the forest and the bright blue color of the river at their feet was a welcome change. As she walked along the riverbank she was able to relax for the first time in days, to just let go and enjoy where she was, even if it was for only a few minutes. The trees around her swayed in a gentle breeze that had kicked up shortly after they had arrived and though it made things a little colder, the air seemed fresher, the smells richer because of it.

She watched fish dart back and forth beneath the surface of the water, listened to the cries of the birds in the trees, but after half an hour without finding anything, she gave up and returned to their starting place at the base of the cliff.

Annja found a relatively flat rock to stretch out on and sat down, letting the afternoon sunlight warm her as she went back over everything in her mind. The answer was there somewhere; she knew it. She just had to ask the right questions in order to get the right answers.

She must have dozed off a little in the peace of the moment, for something intruded on her consciousness and she jerked upright, suddenly aware of how quiet the forest around her had become.

"Mason?" she called softly. "Mr. Davenport?"

There was no answer.

The air held an expectant feeling, ripe with tension, as if the forest around were holding its breath, waiting for something to happen.

And she was all alone.

She reached out into the otherwhere, made sure she could get to her sword if she needed it. It was there as it always was, waiting for her touch to bring it to life, but she didn't draw it just yet. There would be time for that.

She waited.

Listened.

She was just about to call out for her companions a second time when, as if on cue, a deep, groaning cry burst up from the ground nearby.

She jumped in surprise, her skin rising in goose b.u.mps, the sound just the right timbre to cause the hair across her body to stand on end.

The noise came again almost immediately but this time it was gentler, quieter, and somehow she knew it would continue getting softer until she wouldn't be able to hear it at all.

She had to find its source before that happened.

Annja scrambled back to the point where the water surged up from beneath the cliff face, her gaze flashing frantically about, her ears straining.

Come on, come on, she thought, just one more time.

She caught movement out of the corner of her eye but she dared not turn away, dared not miss the opportunity, for who knew when it would come again.

"Annja!" she heard Davenport call, but still she didn't turn.

One more time. Please.

The voice obliged her.

It came again, much more softly, but this time she was ready for it, standing as she was directly in front of the wall when the sound issued from it a third and final time. She saw that it came from a small hole about the size of her fist, a hole that was at shoulder height and, lucky for her, on her side of the stream.

"Did you hear that?" Davenport asked, as he and Mason rushed over to her side. Williams and Kent weren't too far behind.

Annja barely heard the question. Guided by some inner sense she couldn't define, she watched as if from afar as she put her hand inside the hole and pushed.

A deep grinding sound came from somewhere within the wall in front of them and a section of the stone a few feet away rolled slowly to one side, revealing an opening large enough for several of them to fit through at once.

Annja started toward it, but Mason stopped her with a hand on her arm. "Hang on a second. We do this the smart way."

He pulled a pair of high-intensity flashlights out of his pack, keeping one for himself and handing the other to her.

Together, they stepped as one through the opening.

29.

The door opened up into some kind of antechamber, complete with benches around the perimeter and niches in the wall for storing items.

There was a door directly across from the one they'd entered and even in the dim light of their flashlights they could see that it led down a short tunnel and opened into a large s.p.a.ce just beyond. A sconce holding a torch hung on either side of the door and they paused a moment to light them, noting from the dust and cobwebs that neither torch had been lit in many years, ages even.

The torchlight flickered off the stone and sent their shadows chasing after them as they continued. Their footfalls sounded louder than normal in the narrow confines and deep silence of the place. Annja felt the thrill of discovery coursing through her. It was what she loved about archaeology-the suspense, the antic.i.p.ation, the wonder, of what they might find and what they might learn.

Satisfied that there wasn't anything immediately threatening inside the chamber, Mason called out to Davenport and had him join them. After all, this was his expedition. Jeffries and Nambai came in, as well, leaving Williams and Vale to guard the entrance and to watch for any sign that Ransom might be on to them again.

Once the others were inside, Annja and Mason continued on. They quickly found that the short hallway opened into another room, though this one was much larger than the first; they could see darkness pooling out beyond the edge of their torchlight, indicating there was more to uncover. But they barely paid any attention to that fact as soon they got a glimpse of what had been drawn across the floor in the center of the room.