His heart sank slowly. The little baby cloud, looking so harmless, was growing. He said to himself in anger that it was not, but he knew that it was. Black at the center, it radiated in every direction until it became pale gray at the edges, and by and by, as it still spread, it gave to the southwest an aspect that was distinctly sinister.
Sherburne shook his head and the gravity of his face increased. As the cloud grew alarm grew with it in his mind.
"Maybe it will pass," said Harry hopefully.
"I don't think so. It's not moving away. It just hangs there and grows and grows. You're a woodsman, Harry, and you ought to feel it. Don't you think the atmosphere has changed?"
"I didn't have the courage to say so until you asked me, but it's damper. If I were posing as a prophet I should say that we're going to have rain."
"And so should I. Usually at this period of the year in our country we want rain, but now we dread it like a pestilence. At any other time the Potomac could rise or fall, whenever it pleased, for all I cared, but now it's life and death."
"Our doubts are decided and we've lost. Look, sir the whole southwest is dark now!"
"And here come the first drops!"
Sherburne sent hurried orders among the men to keep their ammunition and weapons dry, and then they bent their heads to the storm which would beat almost directly in their faces. Soon it came without much preliminary thunder and lightning. The morning that had been warm turned cold and the rain poured hard upon them. Most of the horsemen were wet through in a short time, and they shivered in their sodden uniforms, but it was a condition to which they were used, and they thought little of themselves but nearly all the while of the Potomac.
Few words were spoken. The only sounds were the driving of the rain and the thud of many hoofs in the mud. Harry often saw misty figures among the trees on the hills, and he knew that they were watched by hostile eyes as the Northern armies in Virginia, were always watched with the same hostility. It was impossible for Lee's men to make any secret march. The population, intensely loyal to the Union, promptly carried news of it to Meade or his generals.
Twice he pointed out the watchers to Sherburne who merely shrugged his shoulders.
"I might send out men and cut off a few of them," he said, "but for what good? Hundreds more would be left and we'd merely be burdened with useless prisoners. Here's a creek ahead, Harry, and look how muddy and foamy it is! It's probably raining harder higher up in the hills than it is here, and all these creeks and brooks go to swell the Potomac."
The swift water rose beyond their stirrups and there was a vast splashing as fifteen hundred men rode through the creek. It was a land of many streams, and a few miles farther on they crossed another, equally swollen and swift.
They had hoped that the rain, like the sudden violence of a summer shower, would pass soon, but the skies remained a solid gray and it settled into a steady solemn pour, cold and threatening, and promising to continue all day long. They could see that every stream they crossed was far above its normal mark, and the last hope that they might find the Potomac low enough for fording disappeared.
The watchers on the hills were still there, despite the rain, but they did no sharpshooting. Nor did the Southern force do damage to anybody or anything, as it passed. Near noon Sherburne resolved to build a fire in a cove protected by cliffs and heavy timber, and give his men warm food lest they become dispirited.
It was a task to set the wet wood, but the men of his command, used to forest life, soon mastered it. Then they threw on boughs and whole tree trunks, until a great bonfire blazed and roared merrily, thrusting out innumerable tongues of red and friendly flame.
"Is there anything more beautiful than a fine fire at such a time?" said St. Clair to Harry. "As it blazes and eats into the wood it crackles and those crackling sounds are words."
"What do the words say?"
"They say, 'Come here and stand before me. So long as you respect me and don't come too close I'll do you nothing but good. I'll warm you and I'll dry you. I'll drive the wet from your skin and your clothes, and I'll chase the cold out of your body and bones. I'll take hold of your depressed and sunken heart and lift it up again. Where you saw only gray and black I'll make you see gold and red. I'll warm and cook your food for you, giving you fresh life and strength. With my crackling coals and my leaping flames I'll change your world of despair into a world of hope.'"
"Hear! Hear!" said Happy Tom. "Arthur has turned from a sodden soldier into a giddy poet! Is any more poetry left in the barrel, Arthur?"
"Plenty, but I won't turn on the tap again to-day. I've translated for you. I've shown you where beauty and happiness lie, and you must do the rest for yourself."
They crowded about the huge fire which ran the entire length of the cove, and watched the cooks who had brought their supplies on horseback. Great quantities of coffee were made, and they had bacon and hard biscuits.
Although the rain still reached them in the cove they forgot it as they ate the good food—any food was good to them—and drank cup after cup of hot coffee. Youthful spirits rose once more. It wasn't such a bad day after all! It had rained many times before and people still lived. Also, the Potomac had risen many times before, but it always fell again. They were riding to clear the way for Lee's invincible army which could go wherever it wanted to go.
"Men on horseback looking at us!" hailed Happy Tom. "About fifty on a low hill on our right. Look like Yankee cavalrymen. Wonder what they take us for anyway!"
Harry, St. Clair, Langdon and Dalton walked to the edge of the cove, every one holding a cup of hot coffee in his hand. Sherburne was already there and with his glasses was examining the strange group, as well as he could through the sweeping rain.
"A scouting party undoubtedly," he said, "but weather has made their uniforms and ours look just about alike. It's equally certain though that they're Yankees. No troop of ours so small would be found here."
Harry was also watching them through glasses, and he took particular note of one stalwart figure mounted upon a powerful horse. The distance was too great to recognize the face, but he knew the swing of the broad shoulders. It was Shepard and once more he had the uneasy feeling winch the man always inspired in him. He appeared and reappeared with such facility, and he was so absolutely trackless that he had begun to appear to him as omniscient. Of course the man knew all about Sherburne's advance and could readily surmise its purpose.
"They're an impudent lot to sit there staring at us in that supercilious manner," said Colonel Talbot. "Shall I take the Invincibles, sir, and teach them a lesson?"
Sherburne smiled and shook his head.
"No, Colonel," he said, "although I thank you for the offer. They'd melt away before you and we'd merely waste our energies. Let them look as much as they please, and now that the boys have eaten their bread and bacon and drunk their coffee, and are giants again, we'll ride on toward the Potomac."
"Do we reach it to-day, sir?" asked Colonel Talbot.
"Not before to-morrow afternoon, even if we should not be interrupted. This is the enemy's country and we may run at any time into a force as large as our own if not larger."
"Thank you for the information, Colonel Sherburne. My ignorance of geography may appear astonishing to you, although we had to study it very hard at West Point. But I admit my weakness and I add, as perhaps some excuse, that I have lately devoted very little attention to the Northern states. It did not seem worth my time to spend much study on the rivers, and creeks and mountains of what is to be a foreign country—although I may never be able to think of John Carrington and many other of my old friends in the army as the foreigners they're sure to become. Has the thought ever occurred to you, Colonel, that by our victories we're making a tremendous lot of foreigners in America?"
"It has, Colonel Talbot, but I can't say that the thought has ever been a particularly