Conan - Beyond the Black River by Robert E. Howard

Conan did not plunge deeply into the forest. A few hundred yards from the river, he altered his slanting course and ran parallel with it. Balthus recognized a grim determination not to be hunted away from the river which they must cross if they were to warn the men in the fort. Behind them rose more loudly the yells of the forest men. Balthus believed the Picts had reached the glade where the bodies of the slain men lay. Then further yells seemed to indicate that the savages were streaming into the woods in pursuit. They had left a trail any Pict could follow.

Conan increased his speed, and Balthus grimly set his teeth and kept on his heels, though he felt he might collapse any time. It seemed centuries since he had eaten last. He kept going more by an effort of will than anything else. His blood was pounding so furiously in his eardrums that he was not aware when the yells died out behind them.