The British Are Coming. Rick Atkinson

waistcoat, but at last they reached the wide road leading west, unpaved except for napped stones and gravel shoveled into mud holes.

      Few knew their destination. Two a.m. had come and gone as they put on speed. With their wet shoes squelching at more than a hundred steps per minute, their pace approached four miles an hour. Past apple and plum orchards they tramped, past smokehouses and cider mills and oblique driftways that led into cow pastures. The heavy footfall rattled pewter dishes on dressers and in cupboards, and an eight-year-old boy, awake when he should have been sleeping, later recalled a wondrous sight on the road outside his window: a long bobbing column of red, “like a flowing river,” sweeping northwest beneath the gibbous moon.

      A brigade of armed men tiptoeing through Boston in the middle of the night had not gone unnoticed. “The town,” a British fusilier acknowledged, “was a good deal agitated.” Joseph Warren may have watched the mustering troops himself; he lived in a rented house on Hanover Street, barely a mile from the foot of the Common, and several companies had made for the boats from his North End neighborhood. Regardless, he was soon well informed. Two weeks earlier, the provincial congress had agreed that an enemy force greater than five hundred men leaving town with baggage and artillery ought to be considered a threat to the province and met by an assembled “army of observation … to act solely on the defensive so long as it can be justified.” This British force, even without heavy guns, was threatening enough for Dr. Warren. Before the first boats pulled off the Boston beach, he had summoned two couriers to carry the alarm to Samuel Adams and John Hancock, holed up in a Lexington parsonage, and to alert the wider countryside.

      The first herald was a beefy, slab-jawed tanner in a slouched hat. William Dawes, Jr., barely thirty, still lived in Ann Street, where he had been raised by Puritan stock so strict that children were forbidden to look outside the window on Sundays and the instructive School of Good Manners advised, “Let thy recreations be lawful, brief, and seldom.” Dawes had overcome such constrictions to become an adept smuggler, a patriot messenger, a militia adjutant, and an intelligence agent; while surveilling British officers, he supposedly sometimes posed as a vegetable peddler, sometimes as a miller, sometimes as a drunk. At Warren’s instruction, he would now ride through the Boston Neck gate on a “slow-jogging horse,” then loop northwest through Cambridge, rousing households on the way to Lexington.

      The second herald had already proved his value as a trusted courier in nearly a dozen rides to New York, Philadelphia, New Hampshire, and, twice so far this month, Lexington and Concord. Paul Revere had often been mentioned in various newspapers over the past year because of the dispatches he carried hither and yon from Boston; he had, as the historian David Hackett Fischer would write, “a genius for being at the center of great events.” Now forty, with the brown eyes of his French Huguenot forebears, a broad, ruddy face, and the sinewy arms of a metalworker, he had run his own business as a silver- and goldsmith for more than twenty years—making teapots, mending spoons, inventing alloys, and setting false teeth, including two for Dr. Warren. He had become a skilled copperplate engraver, a concocter of allegory and caricature, who also made plates for playing cards, broadside illustrations, and paper money. For all his legendary bravura, Revere’s life was stained with tragedy: he would father sixteen children, his “little lambs,” and most would die before their time.

      This was his time. After a brief consultation with Warren, he hurried to his nearby house in Clark’s Square, snatched up his riding boots and a long surtout, then picked his way through the twisting North End alleys to the waterfront. Two confederates waited with a dinghy. Softly they rowed from the wharf, against the young flood and under that old moon, with a temperate breeze stirring out of the southwest. Ahead loomed the Somerset, a seventy-gun warship anchored as a sentinel in the ferryway between Boston and Charlestown, in water so shallow she could barely swing at anchor. Some of Somerset’s crewmen were either manning the longboats at Lechmere Point or working her pumps; an inspection this week had showed the man-of-war to be in desperately poor repair—seams rotten, butt ends open, and long overdue for caulking and sheathing in Halifax. Whether distracted or sightless, the watch failed to spot the small boat that scooted past her stern and on to the Charlestown shore.

      In 1775, America had more than three thousand churches, representing eighteen denominations, but none was more important on this April night than Christ Church in Boston’s Salem Street. Known as Old North, the church featured eight great bells cast in England, a magnificent quartet of hand-carved wooden angels perched above the nave, and a towering steeple, long used as a landmark by navigators entering the harbor and featured in a Boston panorama engraved by Revere the previous year. As carefully planned earlier in the week, another confederate—Revere identified him only as “a friend”—climbed 154 stairs and then a rickety ladder to a window in the steeple’s north face, lugging two lanterns of tinned steel with glass panels, pewter finials, and metal rings for hanging or carrying. For plainspun Boston, the lanterns—or at least the one that has survived—were fancy artifacts: fourteen inches high, six inches wide and deep, with two hundred perforations in the top, arranged to throw exquisite shadows shaped as circles, diamonds, and Maltese crosses. Flint and steel soon lighted the candles, and twin gleams could be seen across the harbor. As Revere intended, rebel leaders beyond the Charles now knew that British troops were on the move via Back Bay—two if by sea—rather than taking the more circuitous, one-if-by-land route through Roxbury.

      Dramatic as the signal was, and as enduring in American iconography, it proved to be superfluous, since both Dawes and Revere successfully eluded British patrols to spread the word themselves. Handed the reins to a big brown New England mare, Revere swung into the saddle and took off at a canter across Charlestown Neck, hooves striking sparks, rider and steed merged into a single elegant creature, bound for glory.

      Two hours later, Revere trotted into Lexington, his mount thoroughly lathered after outgalloping a pair of Gage’s equestrian sentinels near Charlestown. Veering north toward the Mystic River to avoid further trouble, Revere had alerted almost every farmstead and minute captain within shouting distance. Popular lore later credited him with a stirring battle cry—“The British are coming!”—but a witness quoted him as warning, more prosaically, “The regulars are coming out.” Now he carried the alarm to the Reverend Jonas Clarke’s parsonage, just up the road from Lexington Common. Here Clarke had written three thousand sermons in twenty years; here he called up the stairs each morning to rouse his ten children—“Polly, Betsey, Lucy, Liddy, Patty, Sally, Thomas, Jonas, William, Peter, get up!” And here he had given sanctuary, in a bedroom to the left of the front door, to the renegades Hancock and Samuel Adams.

      A squad of militiamen stood guard at the house as Revere dismounted, spurs clanking. Two warnings had already come from the east: as many as nine mounted British officers had been seen patrolling the Middlesex roads, perhaps “upon some evil design.” At the door, a suspicious orderly sergeant challenged Revere, and Clarke blocked his path until Hancock reportedly called out, “Come in, Revere, we’re not afraid of you.” The herald delivered his message: British regulars by the hundreds were coming out, first by boat, then on foot. There was not a moment to lose.

      Thirty minutes later, Dawes arrived with the same warning, and the two riders soon swung toward Concord. As Adams packed up to move deeper into the countryside, Hancock lumbered about the parsonage with his sword and pistol, prattling on about making a desperate stand until he, too, was persuaded to bolt for safety in his fine carriage.

      Now the Lexington bell began to clang in the wooden tower, hard by the meetinghouse. More gallopers rode off to rouse half a hundred villages. Warning gunshots echoed from farm to farm. Bonfires flared. Drums beat. Across the colony, in an image that would endure for centuries, solemn men grabbed their firelocks and stalked off in search of danger, leaving the plow in the furrow, the hoe in the garden, the hammer on the anvil, the bucket at the well sweep. This day would be famous before it dawned.

      Lexington spread across ten thousand acres, occupied by 750 people and 400 cows. Hardwood copses separated fields and pastures, and many small creeks snaked toward the distant Charles and Mystic Rivers. Two cleared acres had been given over to the Common,