That work was the purchase of medicines—chiefly morphine and quinine—and the smuggling of them through the lines into the Confederacy for the use of the armies there. For it is one of the barbarisms of war which civilisation has not yet outgrown, that medicines, even those which are imperatively necessary for the saving of life and the prevention of suffering, are held to be as strictly contraband as gunpowder itself is.
Agatha's plan was to have her associates in Baltimore purchase medicines and surgical appliances in that city and elsewhere—buying only in small quantities in each case, in order to avoid suspicion, but buying large quantities in the aggregate—and forward them to her in Virginia by way of her underground railroad; that is to say, passing them from hand to hand over the route by which she had herself reached Baltimore.
Having perfected these arrangements, her next task was herself to get back to her home, whither she did not mean to go empty-handed. She had gowns made for herself and Martha, using two thicknesses of oiled silk as interlining. Between these she bestowed as much morphia as could be placed there without attracting attention.
This done, she was ready for her return journey, which presented extraordinary difficulty. She could not return by the way she had come, lest the purpose of her journey should be discovered, and her plans for the future be thwarted. She must find some other way.
At first she thought of making her way southward to the lower reaches of the Potomac, and depending upon chance for means of getting across the river there, but this was rendered impracticable by the news that the Confederates had retired from their advanced outposts to Manassas and Centreville, with the Fairfax Court-house line as their extreme advance position. This meant, of course, that they no longer held in any considerable force the posts along the lower river. Moreover, Agatha learned that both the Potomac below Washington, and the navigable part of the Rappahannock were closely patrolled now, by night and by day, by a numerous fleet of big and little Federal war-ships. There seemed no course open to her but to try in some way to get through to Stuart's pickets, if in any way or at any risk she could manage that. That she determined to attempt.
Her first step was to visit friends on the Potomac above Washington. There she learned minutely what the situation was. With some difficulty she secured permission to go as a guest to a house near Falls Church, in Virginia. She had hoped there to find Confederate picket-posts, and to work her way to some one of them by stealth or strategy, or by boldly taking risks. She found instead that the nearest Confederate outpost was at Fairfax Court-house, nine miles away, while the inner Federal lines lay on the route from Falls Church to Vienna, and stretched both ways from those points. Stuart was no longer at Mason's and Munson's Hills. With the approach of winter the Confederates had retired to their fortified line, and Stuart, with the cavalry, had established himself at Camp Cooper and other camps, three or four miles in rear of the Fairfax Court-house line, which now constituted his extreme advance.
Moreover, the Federal army, under McClellan's skilled and vigilant command, had been completely reorganised, drilled, disciplined, and converted from the chaotic mass described in his report—quoted in a former chapter—into an alert and trustworthy army, destined, during later campaigns, to cover itself with glory. At present, McClellan, who had no thought of advancing upon Centreville and Manassas, where the Confederates were strongly fortified, was at any rate manifesting spirit by continually pressing the Confederate outposts, and now and then making considerable demonstrations against them.
His inner picket-lines, as already explained, were drawn very near the house in which Agatha was sojourning. His advanced posts—where the skirmishing was frequent—were along the Fairfax Court-house line. Between these two lines lay eight or ten miles of thick and difficult country, held by the Federals, and scouted over every day, but not regularly picketed.
Thus, instead of a mile or two of difficulty, Agatha had before her ten miles of trouble, with a prospect of worse at the end of it.
Time and extraordinary care were necessary to meet these new difficulties. Agatha's first problem was to find out all she could of facts, to gather exact and trustworthy information. In this endeavour she had a shrewdly intelligent co-adjutor in Martha.