While the outposts of Canada were thus successfully attacked, a blow was struck at a more vital part. Early in June, General Wolfe sailed up the St. Lawrence with a force of eight thousand men, and formed his camp immediately below Quebec, on the Island of Orleans.[123] From thence he could discern, at a single glance, how arduous was the task before him. Piles of lofty cliffs rose with sheer ascent on the northern border of the river; and from their summits the boasted citadel of Canada looked down in proud security, with its churches and convents of stone, its ramparts, bastions, and batteries; while over them all, from the brink of the precipice, towered the massive walls of the Castle of St. Louis. Above, for many a league, the bank was guarded by an unbroken range of steep acclivities. Below, the River St. Charles, flowing into the St. Lawrence, washed the base of the rocky promontory on which the city stood. Lower yet lay an army of fourteen thousand men, under an able and renowned commander, the Marquis of Montcalm. His front was covered by intrenchments and batteries, which lined the bank of the St. Lawrence; his right wing rested on the city and the St. Charles; his left, on the cascade and deep gulf of Montmorenci; and thick forests extended along his rear. Opposite Quebec rose the high promontory of Point Levi; and the St. Lawrence, contracted to less than a mile in width, flowed between, with deep and powerful current. To a chief of less resolute temper, it might well have seemed that art and nature were in league to thwart his enterprise; but a mind like that of Wolfe could only have seen in this majestic combination of forest and cataract, mountain and river, a fitting theatre for the great drama about to be enacted there. Yet nature did not seem to have formed the young English general for the conduct of a doubtful and almost desperate enterprise. His person was slight, and his features by no means of a martial cast. His feeble constitution had been undermined by years of protracted and painful disease.[124] His kind and genial disposition seemed better fitted for the quiet of domestic life than for the stern duties of military command; but to these gentler traits he joined a high enthusiasm, and an unconquerable spirit of daring and endurance, which made him the idol of his soldiers, and bore his slender frame through every hardship and exposure.