“Yes,” the captain replied with much satisfaction. “As soon as I have the guns in place, the general will throw his army about the fortress, and it will have to surrender, or be blown to pieces. The cannon isn’t yet made that can throw a shot six hundred feet straight up in the air to harm us.”

“That is so,” the lad admitted, and turned away with a heavy heart.

From his tent door he could watch the work of the engineers. A derrick was made of a tree some distance up the precipitous side; a pair of horses was attached to one end of the rope, and a gun drawn up to a level spot which had been cleared away a few feet below the tree. Then the tackling was carried to another improvised derrick farther up the hill, and again the horses swung the cannon toward the summit. It was a slow task, often beset with unexpected hindrance; but within two hours the first gun was lying on the level spot which the captain of the corps had designated.

“If one cannon may be put there, six can be made to follow,” muttered Ira as he saw the end of the task. “It is only a question of time. The officer was right; before night he will have his battery where it can be put in place. I must get word to General St. Clair, and let him and his men slip away before they are surrounded.”

The opportunity came to him unexpectedly. About dusk General Burgoyne sent for him.

“Master Le Geyt,” he said, when the young scout was in his presence, “I want you to go below the fort and keep watch over the road the enemy would take if they should attempt to retreat to-night. Select as many men with you as may be needed, and in case you discover any suspicious movement, report promptly to General Fraser. He has his division ready for immediate pursuit the moment we know the Yankees are trying to escape us. Before another night I shall have a force where they cannot leave the fort however great their desire.”

Concealing the exultation he felt at this order, the lad replied promptly:

“I will make arrangements to leave camp at once, general, and shall need but one other man, provided we may have horses. There are two routes by which the Yankees can leave the fort; my comrade can watch one, while I look after the other, and the first to detect any movement of the enemy will report at once to General Fraser.”

“Very well. Go to Colonel Baume; he will furnish you with horses and man, and you can be off by the time it is fairly dark.”

“Yes, sir,” and the lad hurried away.