"Lie down, Sergeant!" said Deck, as he did so himself.

A mounted officer rode along the line of sentinels as far as the creek, evidently assuring himself that all was safe in this part of the camp. He paused a moment at each of the guards, and finally turned his horse and rode back the way he had come.

"We must get over by the river, and see how it looks there," said Deck when the officer had passed out of hearing.

"Then we had better snake it; for if we stand up it may attract the attention of the sentinel nearest to us," suggested the sergeant, as he began to crawl after the manner of the reptile he had mentioned.

The lieutenant followed his example; for he realized that a moving object could be made out in the darkness. By this slow process of locomotion they reached the bank of the river, and heard the dull flow of the water from the middle of the great stream. The bank was high and steep; and it was soft and wet. From this point they could see a steamboat,—a small affair. It was headed up the river; but the light of the fires in the forward part of the craft enabled them to see her, and to make out her position.

On the shore above her there was a considerable crowd of men; but the observers were too far off to be seen distinctly. They could make out by the light of the steamer's fires two large flatboats, and a much smaller craft was made fast to the stern of the steamer. Deck had an idea, but he did not mention it. Stepping over the bank of the river, he began to descend the steep and slippery declivity; and Fronklyn, with a mental protest, followed him.

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CHAPTER XXIV

A NIGHT ADVENTURE ON THE CUMBERLAND

It was walking by the feeling rather than the sight; for the black waters of the great river seemed to make the darkness more dense than in the camp above. Deck's lessons in reasonable caution came to his mind; and he had quite as much need of them as on the field of battle. A misstep might precipitate him into the dark waters of the rushing stream.