CHAPTER XX.
TWO MIDNIGHT PROWLERS.

On the night of the day we are writing about, there was something unusual happening. It was neither a sentry nor an officer, this stealthy figure that stole out of a tent in the street of Company A. He waited cautiously until the sentry behind his tent had passed on to the other end, and then with the slyness of an Indian he crept down the path. And when he disappeared again, it was the big tent of the first captain that swallowed him up.

Fischer was expecting that visit. He was up and dressing, and ready for the other.

"There are the clothes, Mr. Powers," he whispered. "Leave your uniform here and slip into them quickly."

The captain's voice was trembling with excitement, and some little nervousness, too. This was a desperate errand for him. It might cost him his chevrons, if not worse; for he had desperate deeds to do that night.

"Have you got the guns?" he whispered.

By way of answer Texas slipped two shining revolvers into the other's hands. Fischer gripped the cold steel for a moment to steady his nerves, and then thrust the weapons into the pocket of the rough coat he wore.

"Come on," he said. "I'm ready."

He stepped out of the tent, Texas close at his heels. The two crept around the side, then crouched and waited. Suddenly Fischer put his fingers to his lips and gave a low whistle. The effect was instantaneous. Sentries Number Three and Four promptly faced about and marched off the other way. It was contrary to orders for sentries to face in opposite directions at the same time. But it was handy, for it kept them from "seeing any one cross their beats." Texas and his companion had sprung up and dashed across the path and disappeared over the earthworks of old Fort Clinton.