Seeing the impossibility of a successful attack below the town, Wolfe determined to attempt operations on a large scale above it. Accordingly, with every fair wind and tide, ships and transports ran the gauntlet of the batteries of Quebec, and, covered by a hot fire from Point Levi, generally succeeded, with more or less damage, in getting above the town. A fleet of flatboats was also sent up, and 1200 troops marched overland, under Brigadier Murray, to embark in them.

To meet this danger above the town, Bougainville was sent from the camp at Beaufort with 1500 men. Murray made another descent at Pointe-aux-Trembles, but was repulsed with loss. He tried a second time at another place, but a body of ambushed Canadians poured so heavy a fire into the boats, that he was forced to fall back again with considerable loss. His third attempt was more successful, for he landed at Deschambault, and burned a large building filled with stores, and with all the spare baggage of the officers of the French regular troops.

Vaudreuil now regretted having sent the French frigates up the river, and withdrawing their crews to work in the batteries. Had they been kept just above the town, they could have overpowered the English vessels as they passed up. The sailors were now sent up to man their ships again; but Admiral Holmes, who had taken command of the ships of war above Quebec, was already too strong for them, and the sailors were recalled to Quebec.

Both armies were suffering. Dysentery and fever had broken out in the English camp, and the number of effective men was greatly reduced. Upon the other hand, the French were suffering from shortness of supplies. The English frigates above the town prevented food being brought down from Montreal in boats, and the difficulties of land carriage were very great.

The Canadians deserted in great numbers, and Montcalm's force had been weakened by the despatch of Levis, to assist in checking the advance of Amherst. The latter had captured Ticonderoga and Crown Point. Niagara had also been taken by the English. Amherst, however, fell back again, and Levis was able to rejoin Montcalm.

But the greatest misfortune which befell the English was the dangerous illness of Wolfe, who, always suffering from disease, was for a time utterly prostrate. At the end of August, however, he partially recovered, and dictated a letter to his three brigadier generals, asking them to fix upon one of three plans, which he laid before them, for attacking the enemy. The first was that the army should march eight or ten miles up the Montmorenci, ford the river, and fall upon the rear of the enemy. The second was to cross the ford at the mouth of the Montmorenci, and march along the shore, until a spot was found where the heights could be climbed. The third was to make a general attack from the boats upon Beauport.

Monckton, Townshend, and Murray met in consultation, and considered all the plans to be hopeless; but they proposed that an attempt should be made to land above the town, and so to place the army between Quebec and its base of supplies, thereby forcing Montcalm to fight or to surrender.

The attempt seemed a desperate one, but Wolfe determined to adopt it. He had not much hope of its succeeding, but should it not do so, there was nothing for him but to sail, with his weakened army, back to England. He therefore determined at last to make the attempt, and implored his physician to patch him up, so that he could, in person, take the command.

"I know perfectly well that you cannot cure me," he wrote; "but pray make me up, so that I may be without pain for a few days, and able to do my duty. That is all I want."

On the 3rd of September, Wolfe took the first steps towards the carrying out of his plans, by evacuating the camp at Montmorenci. Montcalm sent a strong force to attack him, as he was moving; but Monckton at Point Levi saw the movement, and, embarking two battalions in boats, made a feint of landing at Beauport. Montcalm recalled his troops to repulse the threatened attack, and the English were able to draw off from Montmorenci without molestation.