The agent had been gone an hour when the trail of the outlaws brought him to the knoll.
From the top of it Philip looked over the prairie to the North.
A horseman was galloping toward him.

He knew that it was Billinger, and stood up in his stirrups so that the other would see him.

Half a mile away the agent stopped and Philip could see him signaling frantically with both arms.

Five minutes later Philip rode up to him.

Billinger's horse was half-winded, and in Billinger's face there were tense lines of excitement.
"There's some one out on the prairie," he called, as Philip reined in.
"I couldn't make out a horse, but there's a man in the trail beyond the second ridge.