The left of his operations was entrusted to General Prideaux with a body of colonial militia, and Sir William Johnson with another of friendly Indians, over whom he had a wonderful ascendency. This united force was to march against the fort of Niagara, reduce it, and then, crossing Lake Ontario, advance on Montreal. The centre of his operations was entrusted to General Amherst, who superseded Abercrombie. With twelve thousand men he was again to attempt Ticonderoga, open the navigation of Lake Champlain, and then, joining Prideaux and Johnson at Montreal, descend the St. Lawrence to support Wolfe, who was to be conveyed by sea to the St. Lawrence, and to prepare for the storming of Quebec, it being hoped that, by the time of his arrival, the two other divisions of the army would have come up.

In pursuance of this plan of the campaign, Prideaux and Johnson arrived before the fort of Niagara in the middle of July, which they found very strong, and garrisoned by six hundred men. Prideaux was soon killed by the bursting of a shell, but Johnson continued the siege with great ability, having to invest the fort on one hand, whilst he was menaced on the other by a mixed body of French and Indians, one thousand seven hundred in number, who came to relieve the fort. The attack upon him commenced with a terrible war-whoop of the Indians, which, mingling with the roar of the great cataract near, made the most horrible din imaginable. But this did not disconcert the English and their savage allies, who received them with such steady courage, that in less than an hour they were put to the rout in sight of their own garrison, and pursued for five miles with dreadful slaughter. The garrison thereupon capitulated, remaining prisoners of war. There, however, Sir William Johnson's career stopped. From various causes, not foreseen, he was not able to advance beyond the Ontario to unite with Amherst. That general had fully succeeded in taking Ticonderoga and Crown Point, but he found the French so strongly posted on an island at the upper end of Lake Champlain, that he was compelled to stop and build boats to enable his army to reach and dislodge them; and it was not till October that he was ready to proceed, when he was driven back repeatedly by tempests, and compelled to go into winter quarters.

Wolfe, meanwhile, had reached the St. Lawrence in June, on board a fleet commanded by Admiral Saunders. The navigation of that river was considered very dangerous, but in ascending they captured two small store-ships, and found on board some excellent charts of the river, which enabled the admiral to ascend safely. On the 27th of June the army was landed on the Isle of Orleans, in the middle of the St. Lawrence, in front of Quebec.

The Canadas at that period contained only about sixty thousand souls, Quebec about seven thousand. But the city occupies a most formidable site. It stands on a steep and rocky promontory running into the left bank of the St. Lawrence, about a hundred leagues from its mouth, and where the river, from a breadth of from twelve to twenty miles, rapidly narrows to about one mile. The city is built part on the rocky heights, part on the slopes below. Up the river from the city rose still higher and almost inaccessible steeps, called the Heights of Abraham, and, on the other hand, the side of the city down the stream was bounded by the river St. Charles, which there runs into the St. Lawrence. The stretch of ground between the St. Charles and the stream of Montmorency, some miles lower, called Beauport, was connected by a bridge with Quebec. On this ground, as the most accessible side of the city, Montcalm had encamped his army, consisting altogether of ten thousand French, Canadians, and Indians.

Wolfe raised batteries at Point Levi and on the island, and bombarded the town, but he could not draw the wary Montcalm from his strong position. In his front lay the river and some unapproachable sandbanks, behind and around him rocks and dense woods inaccessible. Once only he made a rush across the river, and endeavoured, with a detachment of one thousand six hundred men, to gain the batteries on Point Levi; but his troops soon saw the attempt to be hopeless, and retired. No measures were neglected by Wolfe, on his part, to draw Montcalm from his position. He marched along the banks of the Montmorency opposite to him, and made feints as if he would cross it somewhere above him, but to no purpose—Montcalm knew his advantage. Wolfe wrote home, that if Montcalm had but shut himself up in Quebec, he could have taken the town very easily, but he could not readily force him from his admirable position. Growing at length impatient, he determined to attack him where he was, and he dispatched Admiral Holmes up the river with a number of transports, as though he contemplated something in that quarter. He then landed, on the 31st of July, a body of troops near the mouth of the Montmorency, which there falls three hundred feet into the St. Lawrence. He had discovered a ford at some distance up the river, and dispatched Brigadier Townshend to cross there and attack Montcalm in flank, whilst he himself, by means of the ships and their boats, gained the beach and attacked in front. The Centurion man-of-war was placed to engage a battery which swept the place of landing, and then the troops were conveyed in boats, which drew little water, towards the shore. Some of these, however, got entangled amongst rocks, and created a delay in getting them off. By this time the French were hurrying down towards the landing-place with their artillery, and began to fire murderously from the banks above upon them. Wolfe, seeing that Townshend would cross the ford before they were ready to co-operate, sent an officer to recall him. At this time, the Grenadiers having reached the beach, rushed forward upon the entrenchments before the rest of the troops could be got out of the boats to support them. They were met by such a destructive fire that they were compelled to fall back with much slaughter. By this time night was setting in, attended by a storm, the roaring of which, mingling with the roar of the mighty St. Lawrence as the tide fell, seemed to warn them to recover their camp. The word was given to re-cross the river, and they made good their retreat without the French attempting to pursue them, though the Indians lurked in the rear to scalp such of the dead and such of the wounded as could not be brought off.

Wolfe then held a council with his two next in command, the Brigadiers Monckton and Townshend, and they resolved, as a desperate attempt, to move up the river, and thus endeavour to draw Montcalm from his unassailable position. Accordingly, leaving detachments to defend the Isle of Orleans and Point Levi, the rest of the army ascended the St. Lawrence for some miles, and pitched their camp on the right bank. To attract still more attention, Admiral Holmes was ordered to put his vessels in active motion for some days, as if seeking a landing-place higher up the river. This stratagem, however, produced no other result than that of Montcalm sending a detachment of one thousand five hundred men to watch their proceedings. He himself maintained his old ground.

Completely disheartened by this result, Wolfe for a moment felt despair of his object, and in that despairing mood, on the 9th of September, he wrote to Pitt. He said that, "to the uncommon strength of the country, the enemy had added, for the defence of the river, a great number of floating batteries and boats; that the vigilance of the Indians had prevented their effecting anything by surprise; that he had had a choice of difficulties, and felt at a loss how to proceed; and he concluded with the remark, that his constitution was entirely ruined, without the consolation of having done any considerable service to the State, or without any prospect of it."

But the despondency of Wolfe was but for a moment. Suddenly a new idea—an inspiration, it seemed—burst upon him: he would scale the Heights of Abraham—the point where no mortal ascent was dreamed of, and which therefore was less defended, except by nature, than the rest of the vicinity of the city. The ships were immediately ordered to make a feint, under Admiral Saunders, opposite Montcalm's camp at Beauport, and those under Holmes, at a point higher up the river. Attention being thus drawn from himself, on the night of the 12th of September, when it was pitch dark and the tide flowing, he put across the river to a small inlet about two miles above Quebec, which ever since bears the name of Wolfe's Cove.

They succeeded in landing unobserved by any of the sentinels posted along the shore, where they had to wait for the boats fetching over the second detachment, there not being boats enough. Before this arrived, they began to climb the rocks by a narrow track, so steep and rugged that they could only ascend by clinging to the bushes and projecting crags. Directly above their heads was a watch-post of a captain and a hundred and fifty men. There, as they drew near the summit, Colonel Howe—a brother of Lord Howe, who fell at Ticonderoga—leading the van, the watch became aware of a noise, and fired down the rocks, directed by the sound. The English soldiers imprudently returned the volley upwards, instead of reserving it until they had gained the ascent. They continued their scramble up, however, with redoubled ardour, and the French, on their sudden appearance, panic-struck, fled. The second detachment soon followed them, and the whole little army stood on the heights above the town before the break of day.

When Montcalm was informed of this wonderful feat, he thought it merely some new feint to draw him from his lines; but when he had ascertained with his own eyes the truth, he said, "I see them, indeed, where they ought not to be; but, as we must fight, I shall crush them." He immediately led his troops over the bridge of the St. Charles, and up to the eminence above the town. There he found the English already advanced in order of battle to within cannon-shot of Quebec. Wolfe had drawn them up with much judgment. His left wing was formed in what military men call en potence—that is, facing two ways, so as to guard against being outflanked. In this wing, too, he had placed a regiment of Highlanders, one of those which Pitt had formed, and which had already shown its bravery. His right, extending towards the St. Lawrence, had in the van the Grenadiers who had distinguished themselves at the taking of Louisburg, supported by a regiment of the line. Wolfe had taken his post on this wing. The sailors had managed to drag up one cannon, and they had seized four other small guns at the battery they had passed; that was all their artillery. But in this respect Montcalm was no better off, for in his haste he had only brought along with him two guns. He had ordered a cloud of Indians to hover on the left of the English, and had lined the thickets and copses with one thousand five hundred of his best marksmen. These concealed skirmishers fired on the advancing pickets of the English with such effect, that they fell back in confusion; but Wolfe hastened forward, encouraged them to dash on, and ordered the first line to reserve their fire till within forty yards of the enemy. The men well obeyed the order, and marched briskly on without firing a shot, whilst the French came hurrying forward, firing as they came. They killed many of the English, but, as soon as these came within the forty yards' distance, they poured a steady and well-directed a volley into the enemy that did dreadful execution. Wolfe, with characteristic enthusiasm, was in the front line, encouraging them by voice and action, and in less than half an hour the French ranks broke, and many began to fly. Meanwhile Wolfe, exposing himself to the very hottest fire, had been wounded in the wrist by nearly the first discharge; and he had scarcely wrapped his handkerchief around it, when another bullet hit him in the groin. Still appearing to pay no attention to these serious wounds, he was in the act of inciting his men to fresh efforts, when a ball pierced his chest, and he fell. He was carried to the rear, and, whilst he seemed to be in the very agony of death, one of those around him cried, "See how they run!" "Who run?" exclaimed Wolfe, raising himself, with sudden energy, on his elbow. "The enemy," replied the officer; "they give way in all directions." "God be praised!" ejaculated Wolfe; "I die happy!" and, falling back, he expired. Nearly at the same moment Brigadier Monckton was severely wounded, and Brigadier Townshend took the command, and completed the victory. Montcalm, also, had fallen. He was struck by a musket-ball whilst endeavouring to rally his men, and was carried into the city, where he died the next day. When told that he could not live—"So much the better," replied this brave and able man; "I shall not then live to see the surrender of Quebec." His second in command was also mortally wounded, and being taken on board the English ships, also died the next day. Of the French, one thousand five hundred had fallen, and six hundred and forty of the English. On the 18th September, five days after the battle, the city capitulated, the garrison marching out with the honours of war, and under engagement to be conveyed to the nearest French port. Other fragments of the defeated army retired to Montreal.