While these great events were occurring at Lexington and Concord, the intelligence of the hostile march of the British troops was spreading rapidly through the country; and hundreds of local communities, animated by the same determined and patriotic spirit, were sending out their representatives to the battle-field. The minute-men, organized and ready for action, promptly obeyed the summons to parade. They might wait in some instances to receive a parting blessing from their minister, or to take leave of weeping friends; but in all the roads leading to Concord, they were hurrying to the scene of action. They carried the firelock that had fought the Indian, and the drum that beat at Louisburg; and they were led by men who had served under Wolfe at Quebec. As they drew near the places of bloodshed and massacre they learned that in both cases the regulars had been the aggressors--"had fired the first"--and they were deeply touched by the slaughter of their brethren. Now the British had fairly passed the Rubicon. If any still counselled forbearance, moderation, peace, the words were thrown away. The assembling bands felt that the hour had come in which to hurl back the insulting charges on their courage that had been repeated for years, and to make good the solemn words of their public bodies. And they determined to attack on their return the invaders of their native soil. Colonel Smith, about twelve o'clock, commenced his march for Boston. His left was covered by a strong flank-guard that kept the height of land that borders the Lexington road, leading to Merriam's Corner; his right was protected by a brook; the main body marched in the road. The British soon saw how thoroughly the country had been alarmed. It seemed, one of them writes, that "men had dropped from the clouds," so full were the hills and roads of the minute-men. The Provincials left the high grounds near the North bridge and went across the pastures known as "the Great Fields," to Bedford road. Here the Reading minute-men, under Major Brooks, afterward Governor Brooks, joined them; and a few minutes after, Colonel William Thompson, with a body of militia from Billerica and vicinity, came up. It is certain, from the diaries and petitions of this period, that minute-men from other towns also came up in season to fire upon the British while leaving Concord.