Six miles below Cairo is a place called Old Fort Jefferson, where many years ago the white settlers built a fort, and where they had a battle with the Indians. The Essex gunboat, Captain Porter, was lying there, swinging at her anchors in the stream. A sailor paced the deck in a short blue jacket, who had a spy-glass in his hand, and kept a sharp lookout down the river, for there were two Rebel gunboats below in the bend.

The regiment landed on the Kentucky side, where a narrow creek comes down from the hills through a wild ravine. Suddenly there was a cry of "There they come! the Rebel gunboats." Paul looked down the river, and saw two dark-colored boats.

"Heave anchor! Put on steam. Light up the magazines. Pipe all hand to quarters! Lively!" were the orders on board the Essex.

The boatswain blew his whistle, the drummer beat the long roll, and the sailors, who had been dozing about the decks, were instantly astir, weighing the anchors, running out the great guns, bringing up shot and shell from the hold, and clearing the deck for action. The great wheels turned, and the Essex swung out into the stream, and prepared to meet her antagonists. What an exciting moment! Paul felt the blood rush through his veins as he never felt it before. One of the approaching gunboats was suddenly enveloped in white smoke. He heard a screaming in the air, coming nearer and nearer, and growing louder and louder and more terrifying. He felt a cold chill creep over him. He held his breath. He was in doubt whether it would be better to get behind a tree, or lie down, or take to his heels. He could see nothing in the air, but he knew that a shot was coming. Perhaps it might hit him. He thought of home, his mother, Azalia, and all the old friends. He lived years in a second. "I won't run," he said to himself, as the iron bolt came on. Crash! it went through a great oak-tree, shivering it to splinters, and flying on into the woods, cutting off branches, and falling to the ground at last with a heavy thug! ploughing a deep furrow and burying itself out of sight. There was a roar of thunder rolling along the river-banks, echoing from woodland to woodland. Then the heavy eleven-inch gun of the Essex jumped up from the deck, took a leap backwards, almost jerking the great iron ringbolts from the sides of the ship, coming down with a jar which made her quiver from stem to stern, sending a shell, smoking and hissing, down stream, towards the Rebel gunboat, and striking it amidships, throwing the planks into the water. "Hurrah! Hurrah!" shouted the crew of the Essex. "Hurrah! Hurrah!" answered the soldiers on shore, dancing about and cheering. Another shot came screeching towards them as loud as the first; but it was not half so terrifying. Paul thought it was not worth while to be frightened till he was hurt, and so he stood his ground, and watched the firing till the Rebel gunboats turned towards Columbus and disappeared behind the distant headland, followed by Captain Porter, who kept his great guns booming till he was almost within range of the Rebel batteries at Columbus. He was a brave man, short and stout, with a heavy beard. His father commanded the United States ship Essex in 1812, and had a long, hard fight with two British ships in the harbor of Valparaiso, fighting against great odds, till his decks were slippery with blood, till nearly all of his guns were dismounted, when he was obliged to surrender.

"The son is a chip of the old block," said Admiral Foote the next day to Captain Porter, commending his watchfulness and promptness to meet the enemy. Paul saw how necessary it was in military operations to be always on the watch, and he felt that it was also necessary to be calm and self-possessed when on the battle-field.

The regiment took up its line of march, for a reconnoissance towards Columbus, along a winding path through the woods, passing log farm-houses, crossing creeks on log bridges. Paul noticed all the windings of the road, the hills, houses, and other objects, keeping count of his steps from one place to another, jotting it down on a slip of paper when the regiment came to a halt. They could not kindle a fire, for they were in the enemy's country, and each man ate his supper of hard-tack and cold beef, and washed it down with water from the creek.

Paul was sitting on a log eating his supper, and looking about for a place to spread his blanket for the night, when the Colonel of the regiment came to him and said: "Sergeant Parker, it is very important that a reconnoissance be made to-night towards the enemy's lines. I hear that you are a good, faithful, and trustworthy soldier. Are you willing to take it?"

"I have no desire to shirk any responsibility. If you wish me to go, I am ready," said Paul.

"Very well; gain all the information you can, and report at daybreak," said the Colonel.