It was about 11 o'clock when Revere started from the Charlestown shore on his mission to alarm. He had intended to proceed over Charlestown Neck, through Somerville to Cambridge and thence to Lexington. Just such a ride as his had been anticipated, for he had gone but a short distance along the Cambridge road beyond Charlestown Neck, when he perceived two mounted British officers halted under the shadows of a tree in a narrow part of the road.[51] Near by was the gibbet where Mark, the negro slave, executed in 1755 for poisoning his master, hung in chains for about fifteen years.

Revere wheeled his horse and made his escape, retreating along the road to the Neck, then turning into the Mystic road, which runs over Winter Hill into Medford.[52] There he awakened the Captain of the Minute Men, Isaac Hall, and alarmed almost if not every house on the way to Lexington. His road was through West Medford to Arlington Centre, there turning at the Cooper Tavern northwesterly towards Lexington. He reached the parsonage in Lexington at midnight, which then stood on the westerly side of the Bedford Road about a quarter of a mile beyond the Common.[53] Within were sleeping John Hancock and Samuel Adams. Keeping guard outside were eight men under Sergeant William Munroe, who cautioned Revere not to make too much noise, lest he should awaken the family, who had just retired.

"Noise," exclaimed Revere, "You'll have noise enough before long. The regulars are coming out."

But he had already alarmed the inmates, for the window was raised, and the parson, Mr. Clarke, inquired who was there. Revere, without answering the question, said he wished to see Mr. Hancock.

"Come in, Revere," exclaimed Hancock, who also had been awakened, "we are not afraid of you."

Half an hour later Dawes rode up from his longer ride from Boston.[54] They partook of refreshments and together set out for Concord. Not far beyond Lexington Common they were overtaken by a young man, Dr. Samuel Prescott, whose home was in Concord. That evening he had been visiting the young lady to whom he was engaged to be married, Miss Mulliken of Lexington. Revere spoke of the ten officers that Devens had met, and of the probability that they would attempt to stop them before they should reach Concord. It was planned to alarm every house on the way. Dr. Prescott volunteered to remain with the two riders, as his acquaintance with the people along the road might be needed to vouch for the genuineness of the message.

His company was accepted and very welcome. They rode along, alarming each household, a little over two and a half miles from Lexington Common. Dawes and Prescott had stopped at a house to arouse the inmates, and Revere was about a hundred rods ahead, when he saw two men in the highway. He called loudly for Dawes and Prescott to come up, thinking to capture them, but just then two more appeared, coming through the bars from a pasture on the right, or northerly side of the road, where they had been standing in the shadow of a tree. They proved to be officers of the British Army. Dawes wheeled his horse back towards Lexington and escaped. Prescott and Revere attempted to ride towards Concord, but were intercepted and ordered to move through the bars into the pasture or have their brains blown out. They preferred to do as ordered, but when a little way inside, Prescott said to Revere, "put on," and immediately jumped his horse over the stone wall at his left and disappeared down the farm road leading into a ravine where rise the headwaters of the Shawsheen River. He knew the location well, and easily followed the road through the thicket until it comes out on the Concord road again, a half mile or so beyond. Revere, not so well acquainted with the location, headed towards the dense woods on the lower edge of the pasture, thinking to dismount within their shadows and escape on foot. Six more British officers were in hiding there, and they easily seized his horse's bridle and with pistols levelled at his breast ordered him to dismount.

And so there in Lincoln, about two and one-half miles beyond Lexington, ended the midnight rides of William Dawes and Paul Revere. Prescott had gone on to continue the alarm, Dawes had retreated towards Lexington, and Revere was a prisoner. While the latter was being secured, three or four of the officers started up the road in pursuit of Dawes, who galloped his horse furiously up to a farm house, where he reined in so suddenly that he was thrown to the ground. With great presence of mind he shouted loudly for assistance, exclaiming:—

"Hallo, my boys. I've got two of 'em."

The British in pursuit supposing they were ambushed in turn, retreated and made good their escape. Dawes rose from the ground and found himself quite alone, for the house, which might have contained a force of American minute men, was empty and deserted. He mounted his horse and rode leisurely away.[55]