The probability that Curwen was on guard and attempting unusual things, as suggested by the odd shaft of light, precipitated at last the action so carefully devised by the band of serious citizens. According to the Smith diary a company of about 100 men met at 10 p.m. on Friday, April 12th, 1771, in the great room of Thurston’s Tavern at the Sign of the Golden Lion on Weybosset Point across the Bridge. Of the guiding group of prominent men in addition to the leader, John Brown, there were present Dr Bowen, with his case of surgical instruments, President Manning without the great periwig (the largest in the Colonies) for which he was noted, Governor Hopkins, wrapped in his dark cloak and accompanied by his seafaring brother Eseh, whom he had initiated at the last moment with the permission of the rest, John Carter, Capt. Mathewson, and Capt. Whipple, who was to lead the actual raiding party. These chiefs conferred apart in a rear chamber, after which Capt. Whipple emerged to the great room and gave the gathered seamen their last oaths and instructions. Eleazar Smith was with the leaders as they sat in the rear apartment awaiting the arrival of Ezra Weeden, whose duty was to keep track of Curwen and report the departure of his coach for the farm.

About 10:30 a heavy rumble was heard on the Great Bridge, followed by the sound of a coach in the street outside; and at that hour there was no need of waiting for Weeden in order to know that the doomed man had set out for his last night of unhallowed wizardry. A moment later, as the receding coach clattered faintly over the Muddy Dock Bridge, Weeden appeared; and the raiders fell silently into military order in the street, shouldering the firelocks, fowling-pieces or whaling harpoons which they had with them. Weeden and Smith were with the party, and of the deliberating citizens there were present for active service Capt. Whipple, the leader, Capt. Eseh Hopkins, John Carter, President Manning, Capt. Mathewson and Dr Bowen; together with Moses Brown, who had come up at the eleventh hour though absent from the preliminary session in the tavern. All these freemen and their hundred sailors began the long march without delay, grim and a trifle apprehensive as they left the Muddy Dock behind and mounted the gentle rise of Broad Street toward the Pawtuxet Road. Just beyond Elder Snow’s church some of the men turned back to take a parting look at Providence lying outspread under the early spring stars. Steeples and gables rose dark and shapely, and salt breezes swept up gently from the cove north of the Bridge. Vega was climbing above the great hill across the water, whose crest of trees was broken by the roof-line of the unfinished College edifice. At the foot of that hill, and along the narrow mounting lanes of its side, the old town dreamed; Old Providence, for whose safety and sanity so monstrous and colossal a blasphemy was about to be wiped out.