Austin noticed the evident bond between the older man and the young woman. He introduced himself and Zavala.

“My name is Schroeder,” the man said. “Thank you for your help. How did you find us?”

“We talked to a woman named Maria Arbatov.”

“Maria. How is she?” Karla said.

“She's going to be fine, but her husband and two other men were murdered. I assume they were your fellow scientists. There was another man we couldn't identify.”

Karla glanced at Schroeder, who said, “He attacked Karla. I had to stop him.” He squinted toward the boulder field. “This is a dangerous place. They'll be back. They have automatic weapons, and we're totally exposed out here.”

“This is your neighborhood,” Austin said. "Where can we find cover?

Schroeder pointed to the base of the slope that came down from the rim of the caldera.

“Down there in the city.”

Austin wondered if the man was delirious from his injuries.

“Did you say 'city'?” He saw only the low bluffs at the base of the slope.

“That's right,” Karla said. “Oh no, the dwarves are gone. The gunfire must have scared them.”

It was Zavala's turn to wonder if he was hearing things. “Dwarves?”

“Yes,” Karla said. “Dwarf woolly mammoths.”

Austin and Zavala exchanged glances.

“Enough talk. We've got to get moving,” Schroeder said.

Clutching Karla by the arm, he limped toward the edge of the bowl. Austin and Zavala took up the rear. Schroeder's insistence that they start moving proved to be sound advice. The group had almost reached the edge of the green area when Grisha and his men suddenly broke from their rocky cover and began firing their guns.

Fountains of dirt erupted in the grass about a dozen feet behind the fleeing group.

It would take only a second for Grisha and his men to get the range. Austin yelled at the others to keep going. He turned and threw himself belly-down on the ground and took careful aim with his Bowen at the nearest Russian.

He cracked off a couple of shots that fell short. Grisha and his men were taking no chances. When Austin fired, they stopped shooting and went belly-down as well.

Austin turned and saw that the others were nearly at the face of the bluff. He scrambled to his feet and sprinted after them. Grisha's men started shooting again. The bullets were practically hitting the ground at his heels as he ducked the others into an opening in the face of the cliff.

Karla shook her flashlight, and the batteries apparently still had a little juice left in them because the bulb glowed dimly. They picked their way through the winding path. When the flashlight finally sputtered and died, they had entered the area where some buildings still stood among the rubble and were beginning to see the glow from the underground city. They followed the beckoning light like moths toward a flame and soon came upon the subterranean metropolis.