On the day after the Reverend Mr. Carroll had failed in his part of the mission, joined Dr. Franklin, and returned to the South, Chase and Carroll of Carrollton had been busy with the military part of their embassy. At a council of war held in Montreal, it was resolved to fortify Jacques Cartier--the Richelieu Rapids, between Quebec and Three Rivers--and to build six gondolas at Chambly, of a proper size to carry heavy cannon, and to be under the direction of Arnold. But disasters thickened around the insurgents. The small pox had broken out among the troops, and was making deep inroads upon their scanty numbers. To crown the whole, the worst news was received from the besiegers at Quebec, for out of 1,900 men, there were not more than 1,000 fit for duty, all the rest being invalids, chiefly afflicted with the small-pox. On the 5th of May, 1776, a council of war was held at Quebec, and it was resolved to remove the invalids, artillery, batteaux, and stores higher up the river; but, on the evening of that day, intelligence was received in the American camp, that fifteen ships were within forty leagues of Quebec, hastening up the river; and early next morning, five of them hove in sight. General Thomas immediately gave orders to embark the sick and the artillery in the batteaux, whilst the enemy began to land their troops. About noon, a body of the British, a thousand strong, formed into two divisions, in columns of six deep, and supported with a train of six pieces of cannon, attacked the American sentinels and main guard. The Americans stood for a moment on the plains, with about 250 men and _one_ field piece only, when the order for retreat was given, and the encampment was precipitately deserted. In the confusion, all the cannon of the besiegers fell into the hands of the British, and about 200 invalids were made prisoners. Following the course of the river, the broken army of the Americans fled towards Montreal, and halting for a while at Deschambault, finally retreated along the St. Lawrence, until they made a stand at Sorel, with the view to an "orderly retreat out of Canada."[9] By the 18th of June, the British General, Burgoyne, was close behind Arnold, who now, with the whole of the American army, had quitted Canadian soil, and was proceeding somewhat rapidly up the Richelieu, into Lake Champlain. [9] Carroll's visit to Canada, p. 27.