“Do you know if your uncle, Colonel Kenton, is in Vicksburg?”
“I don't think so. In fact, I'm sure he isn't. His regiment is with Bragg. Well, George, what does your algebra tell us?”
Warner had taken out his little volume again and was studying it intently. But he raised his head long enough to reply.
“I have just achieved the solution of a very important mathematical problem,” he answered in precise tones. “An army of about thirty-five thousand men occupies a town located on a river. It is besieged by another army of about seventy-five thousand men flushed with victory. The besiegers occupy the river with a strong fleet. They are also led by a general who has shown skill and extraordinary tenacity, while the commander of the besieged has not shown much of either quality and must feel great discouragement.”
“But you're only stating the side of the besieged.”
“Don't interrupt. It's impolite. I mean to be thoroughly fair. Now come the factors favoring the besieged. The assailing army, despite its superior numbers, is far in the enemy's country. It may be attacked at any time by another army outside, small, but led by a very able general. Now, you have both sides presented to you, but I have already arrived at the determining factor. What would you say it is, Dick?”
“I don't know.”
“You haven't used your reasoning powers. Remember that the man who not merely thinks, but who thinks hard and continuously always wins. It's very simple. The answer is in four letters, f-o-o-d, food. As we know positively, Pemberton was able to provision Vicksburg for five or six weeks. We can't break in and he can't break out. When his food is exhausted, as it soon will be, he'll have to give up. The siege of Vicksburg is over. I know everything, except the exact date.”
Dick was inclined to believe that Warner was right, but he forgot about his prediction, because a mail came down the river that afternoon, and he received a letter from his mother, his beautiful young mother, who often seemed just like an elder sister.
She was in Pendleton, she wrote, staying comfortably in their home. The town was occupied by three companies of veteran Union troops who behaved well. They were always glad to have a garrison of good soldiers whether Federal or Confederate—sometimes it was one and sometimes the other. But she thought the present Union force would remain quite a while, as she did not look for the reappearance of the Southern army in Kentucky. But if the town were left without troops she would go back to her relatives in the Bluegrass, as Bill Skelly's band to the eastward in the mountains was raiding and plundering and had become a great menace. Guerillas were increasing in numbers in those doubtful regions.