Allan Pinkerton, The spy in the rebellion; being a true history of the spy system of the United States Army during the late rebellion, revealing many secrets of the war hitherto not made public, compiled from official reports prepared for President Lincoln , General McClellan and the Provost-Marshal-General .

The valiant Captain was not aware that he had been furnishing very valuable information to his gentlemanly visitor, and that while he was unsuspectingly answering his well-directed questions, his servant, the quiet Sam Bridgeman, was unobservedly making notes of all that he heard in relation to the situation of affairs and with regard to the probable movements of the rebel troops.

A rather ridiculous incident occurred to our two travelers after leaving the camp. They had proceeded but a short distance upon their way, when one of the horses they were driving cast a shoe, which made it necessary for them to stop at a little village and secure the services of a blacksmith.

Driving up to the hotel, Lewis alighted from the wagon, while Bridgeman drove to the blacksmithshop in order to have his horse attended to. As Lewis ascended the steps of the hotel he noticed a tall, rather commanding-looking gentleman seated upon the porch, who was evidently scrutinizing his appearance, very carefully. The stranger was a man about sixty years of age, but remarkably well preserved, and the lines on his face scarcely gave but little indication of his years. There was an air of seeming importance about him which impressed Lewis with the fact that he must be one of the dignitaries