Martha was a sagacious as well as a discreet person. At first she showed a timid reluctance to go farther toward the front than the inner lines from Falls Church to Vienna. While peddling her wares there, she took pains to learn all the foot-paths, and the location of all the picket-posts in that region. Then little by little she allowed herself to be persuaded to go farther toward the outer lines, for the soldiers found her fried chicken and her biscuits and her pies particularly alluring. It was only after she had mastered both the topography of the country between, and the exact methods of its military occupation, that she so far overcame her assumed timidity as to push on with her basket to the picket-posts immediately in front of Fairfax Court-house itself. She raised her prices as she went, lest by selling out her stock in trade she should leave herself no excuse for going to the extreme front at all. For the same reason she came at last to pass by many posts where she had formerly had good customers, retaining her wares professedly for the sake of the higher prices that the men at the front gladly paid for something better to eat than the contents of their haversacks. Within a week or two Martha had learned and reported to her mistress quite all that any officer on either side knew of the country, its roads, its foot-paths, its difficulties, and the opportunities it afforded. In the middle of every night, Martha made her way to her mistress, or her mistress made her way to Martha, until at last, Agatha, who had directed her inquiries, was equipped with all necessary information, and ready for her supreme endeavour. It involved much of danger and incredible difficulty. But the courageous young woman was prepared to meet both danger and difficulty with an equable mind. She knew now whither she was going and how, but the journey through a difficult country must be made wholly on foot and wholly by night. Agatha was ready for the ordeal. As for Martha, the earth to the very ends of it held no terrors that could cause even hesitation on her part in the service of her mistress. XVI _CANISTER_