The chopper, flying quite close to the ground now, had disappeared from view among the convolutions of the ridges and valleys. Sokolov now set a pace that Olivia was barely able to keep up with. He was too much the gentleman to leave her far behind, but she did not want to make him stop and wait any more than was strictly necessary. They soon emerged from the boulder field and began to pick their way straight down the talus slope toward the trees.