From the time when peace was concluded with the Wyandots and Pottawattamies until the end of July, little worthy of notice took place at Detroit. The fort was still watched closely by the Ottawas and Ojibwas, who almost daily assailed it with petty attacks. In the mean time, unknown to the garrison, a strong re-enforcement was coming to their aid. Captain Dalzell had left Niagara with twenty-two barges, bearing two hundred and eighty men, with several small cannon, and a fresh supply of provisions and ammunition.[242] Coasting the south shore of Lake Erie, they soon reached Presqu’ Isle, where they found the scorched and battered blockhouse captured a few weeks before, and saw with surprise the mines and intrenchments made by the Indians in assailing it.[243] Thence, proceeding on their voyage, they reached Sandusky on the twenty-sixth of July; and here they marched inland to the neighboring village of the Wyandots, which they burnt to the ground, at the same time destroying the corn, which this tribe, more provident than most of the others, had planted there in the spring. Dalzell then steered northward for the mouth of the Detroit, which he reached on the evening of the twenty-eighth, and cautiously ascended under cover of night. “It was fortunate,” writes Gladwyn, “that they were not discovered, in which case they must have been destroyed or taken, as the Indians, being emboldened by their late successes, fight much better than we could have expected.” On the morning of the twenty-ninth, the whole country around Detroit was covered by a sea of fog, the precursor of a hot and sultry day; but at sunrise its surface began to heave and toss, and, parting at intervals, disclosed the dark and burnished surface of the river; then lightly rolling, fold upon fold, the mists melted rapidly away, the last remnant clinging sluggishly along the margin of the forests. Now, for the first time, the garrison could discern the approaching convoy.[244] Still they remained in suspense, fearing lest it might have met the fate of the former detachment; but a salute from the fort was answered by a swivel from the boats, and at once all apprehension passed away. The convoy soon reached a point in the river midway between the villages of the Wyandots and the Pottawattamies. About a fortnight before, as we have seen, these capricious savages had made a treaty of peace, which they now saw fit to break, opening a hot fire upon the boats from either bank.[245] It was answered by swivels and musketry; but before the short engagement was over, fifteen of the English were killed or wounded. This danger passed, boat after boat came to shore, and landed its men amid the cheers of the garrison. The detachment was composed of soldiers from the 55th and 80th Regiments, with twenty independent rangers, commanded by Major Rogers; and as the barracks in the place were too small to receive them, they were all quartered upon the inhabitants.