In the mean time, Mr. Seward had also discovered the conspiracy. He despatched his son to Philadelphia to warn the President elect of the terrible plot into whose meshes he was about to run. Mr. Lincoln turned him over to Judd, and Judd told him they already knew all about it. He went away with just enough information to enable his father to anticipate the exact moment of Mr. Lincoln's surreptitious arrival in Washington.

Early on the morning of the 22d, Mr. Lincoln raised the flag over Independence Hall, and departed for Harrisburg. On the way, Mr. Judd "gave him a full and precise detail of the arrangements that had been made" the previous night. After the conference with the detective, Mr. Sanford, Col. Scott, Mr. Felton, railroad and telegraph officials, had been sent for, and came to Mr. Judd's room. They occupied nearly the whole of the night in perfecting the plan. It was finally understood that about six o'clock the next evening Mr. Lincoln should slip away from the Jones Hotel, at Harrisburg, in company with a single member of his party. A special car and engine would be provided for him on the track outside the dépôt. All other trains on the road would be "sidetracked" until this one had passed. Mr. Sanford would forward skilled "telegraph-climbers," and see that all the wires leading out of Harrisburg were cut at six o'clock, and kept down until it was known that Mr. Lincoln had reached Washington in safety. The detective would meet Mr. Lincoln at the West Philadelphia dépôt with a carriage, and conduct him by a circuitous route to the Philadelphia, Wilmington, and Baltimore dépôt. Berths for four would be pre-engaged in the sleeping-car attached to the regular midnight train for Baltimore. This train Mr. Felton would cause to be detained until the conductor should receive a package, containing important "government despatches," addressed to "E. J. Allen, Willard's Hotel, Washington." This package was made up of old newspapers, carefully wrapped and sealed, and delivered to the detective to be used as soon as Mr. Lincoln was lodged in the car. Mr. Lincoln approved of the plan, and signified his readiness to acquiesce. Then Mr. Judd, forgetting the secrecy which the spy had so impressively enjoined, told Mr. Lincoln that the step he was about to take was one of such transcendent importance, that he thought "it should be communicated to the other gentlemen of the party." Mr. Lincoln said, "You can do as you like about that." Mr. Judd now changed his seat; and Mr. Nicolay, whose suspicions seem to have been aroused by this mysterious conference, sat down beside him, and said, "Judd, there is something up. What is it, if it is proper that I should know?"—"George," answered Judd, "there is no necessity for your knowing it. One man can keep a matter better than two."

Arrived at Harrisburg, and the public ceremonies and speech-making over, Mr. Lincoln retired to a private parlor in the Jones House; and Mr. Judd summoned to meet him Judge Davis, Col. Lamon, Col. Sumner, Major Hunter, and Capt. Pope. The three latter were officers of the regular army, and had joined the party after it had left Springfield. Judd began the conference by stating the alleged fact of the Baltimore conspiracy, how it was detected, and how it was proposed to thwart it by a midnight expedition to Washington by way of Philadelphia. It was a great surprise to most of those assembled. Col. Sumner was the first to break silence. "That proceeding," said he, "will be a damned piece of cowardice." Mr. Judd considered this a "pointed hit," but replied that "that view of the case had already been presented to Mr. Lincoln." Then there was a general interchange of opinions, which Sumner interrupted by saying, "I'll get a squad of cavalry, sir, and cut our way to Washington, sir!"—"Probably before that day comes," said Mr. Judd, "the inauguration day will have passed. It is important that Mr. Lincoln should be in Washington that day." Thus far Judge Davis had expressed no opinion, but "had put various questions to test the truthfulness of the story." He now turned to Mr. Lincoln, and said, "You personally heard the detective's story. You have heard this discussion. What is your judgment in the matter?"—"I have listened," answered Mr. Lincoln, "to this discussion with interest. I see no reason, no good reason, to change the programme; and I am for carrying it out as arranged by Judd." There was no longer any dissent as to the plan itself; but one question still remained to be disposed of. Who should accompany the President on his perilous ride? Mr. Judd again took the lead, declaring that he and Mr. Lincoln had previously determined that but one man ought to go, and that Col. Lamon had been selected as the proper person. To this Sumner violently demurred. "I have undertaken," he exclaimed, "to see Mr. Lincoln to Washington."

Mr. Lincoln was hastily dining when a close carriage was brought to the side-door of the hotel. He was called, hurried to his room, changed his coat and hat, and passed rapidly through the hall and out of the door. As he was stepping into the carriage, it became manifest that Sumner was determined to get in also. "Hurry with him," whispered Judd to Lamon, and at the same time, placing his hand on Sumner's shoulder, said aloud, "One moment, colonel!" Sumner turned around; and, in that moment, the carriage drove rapidly away. "A madder man," says Mr. Judd, "you never saw."

Mr. Lincoln and Col. Lamon got on board the car without discovery or mishap. Besides themselves, there was no one in or about the car but Mr. Lewis, general superintendent of the Pennsylvania Central Railroad, and Mr. Franciscus, superintendent of the division over which they were about to pass. As Mr. Lincoln's dress on this occasion has been much discussed, it may be as well to state that he wore a soft, light felt hat, drawn down over his face when it seemed necessary or convenient, and a shawl thrown over his shoulders, and pulled up to assist in disguising his features when passing to and from the carriage. This was all there was of the "Scotch cap and cloak," so widely celebrated in the political literature of the day.

At ten o'clock they reached Philadelphia, and were met by the detective, and one Mr. Kinney, an under-official of the Philadelphia, Wilmington, and Baltimore Railroad. Lewis and Franciscus bade Mr. Lincoln adieu. Mr. Lincoln, Col. Lamon, and the detective seated themselves in a carriage, which stood in waiting, and Mr. Kinney got upon the box with the driver. It was a full hour and a half before the Baltimore train was to start; and Mr. Kinney found it necessary "to consume the time by driving northward in search of some imaginary person."

On the way through Philadelphia, Mr. Lincoln told his companions about the message he had received from Mr. Seward. This new discovery was infinitely more appalling than the other. Mr. Seward had been informed "that about fifteen thousand men were organized to prevent his (Lincoln's) passage through Baltimore, and that arrangements were made by these parties to blow up the railroad track, fire the train." &c. In view of these unpleasant circumstances, Mr. Seward recommended a change of route. Here was a plot big enough to swallow up the little one, which we are to regard as the peculiar property of Mr. Felton's detective. Hilliard, Ferrandina, and Luckett disappear among the "fifteen thousand;" and their maudlin and impotent twaddle about the "abolition tyrant" looks very insignificant beside the bloody massacre, conflagration, and explosion now foreshadowed.

As the moment for the departure of the Baltimore train drew near, the carriage paused in the dark shadows of the dépôt building. It was not considered prudent to approach the entrance. The spy passed in first, and was followed by Mr. Lincoln and Col. Lamon. An agent of the former directed them to the sleeping-car, which they entered by the rear door. Mr. Kinney ran forward, and delivered to the conductor the "important package" prepared for the purpose; and in three minutes the train was in motion. The tickets for the whole party had been procured beforehand. Their berths were ready, but had only been preserved from invasion by the statement, that they were retained for a sick man and his attendants. The business had been managed very adroitly by the female spy, who had accompanied her employer from Baltimore to Philadelphia to assist him in this the most delicate and important affair of his life. Mr. Lincoln got into his bed immediately; and the curtains were drawn together. When the conductor came around, the detective handed him the "sick man's" ticket; and the rest of the party lay down also. None of "our party appeared to be sleepy," says the detective; "but we all lay quiet, and nothing of importance transpired." "Mr. Lincoln is very homely," said the woman in her "report," "and so very tall, that he could not lay straight in his berth." During the night Mr. Lincoln indulged in a joke or two, in an undertone; but, with that exception, the "two sections" occupied by them were perfectly silent. The detective said he had men stationed at various places along the road to let him know "if all was right;" and he rose and went to the platform occasionally to observe their signals, but returned each time with a favorable report.

At thirty minutes after three, the train reached Baltimore. One of the spy's assistants came on board, and informed him "in a whisper that all was right." The woman got out of the car. Mr. Lincoln lay close in his berth; and in a few moments the car was being slowly drawn through the quiet streets of the city toward the Washington dépôt. There again there was another pause, but no sound more alarming than the noise of shifting cars and engines. The passengers, tucked away on their narrow shelves, dozed on as peacefully as if Mr. Lincoln had never been born, until they were awakened by the loud strokes of a huge club against a night-watchman's box, which stood within the dépôt and close to the track. It was an Irishman, trying to arouse a sleepy ticket-agent, comfortably ensconced within. For twenty minutes the Irishman pounded the box with ever-increasing vigor, and, at each report of his blows, shouted at the top of his voice, "Captain! it's four o'clock! it's four o'clock!" The Irishman seemed to think that time had ceased to run at four o'clock, and, making no allowance for the period consumed by his futile exercises, repeated to the last his original statement that it was four o'clock. The passengers were intensely amused; and their jokes and laughter at the Irishman's expense were not lost upon the occupants of the "two sections" in the rear. "Mr. Lincoln," says the detective, appeared "to enjoy it very much, and made several witty remarks, showing that he was as full of fun as ever."

In due time the train sped out of the suburbs of Baltimore; and the apprehensions of the President and his friends diminished with each welcome revolution of the wheels. At six o'clock the dome of the Capitol came in sight; and a moment later they rolled into the long, unsightly building, which forms the Washington dépôt. They passed out of the car unobserved, and pushed along with the living stream of men and women toward the outer door. One man alone in the great crowd seemed to watch Mr. Lincoln with special attention. Standing a little on one side, he "looked very sharp at him," and, as he passed, seized hold of his hand, and said in a loud tone of voice, "Abe, you can't play that on me." The detective and Col. Lamon were instantly alarmed. One of them raised his fist to strike the stranger; but Mr. Lincoln caught his arm, and said, "Don't strike him! don't strike him! It is Washburne. Don't you know him?" Mr. Seward had given to Mr. Washburne a hint of the information received through his son; and Mr. Washburne knew its value as well as another. For the present, the detective admonished him to keep quiet; and they passed on together. Taking a hack, they drove towards Willard's Hotel. Mr. Lincoln, Mr. Washburne, and the detectives got out in the street, and approached the ladies' entrance; while Col. Lamon drove on to the main entrance, and sent the proprietor to meet his distinguished guest at the side door. A few minutes later Mr. Seward arrived, and was introduced to the company by Mr. Washburne. He spoke in very strong terms of the great danger which Mr. Lincoln had so narrowly escaped, and most heartily applauded the wisdom of the "secret passage." "I informed Gov. Seward of the nature of the information I had," says the detective, "and that I had no information of any large organization in Baltimore; but the Governor reiterated that he had conclusive evidence of this."