One of the absent schooners kept for the use of the fort had gone down river with letters and dispatches. Her crew knew nothing of the siege, and she narrowly escaped capture. A convoy of boats, bringing the usual spring supplies, was taken, leaving Detroit to face famine. Yet it refused to surrender, and, in spite of Pontiac's rage and his continual investment of the place, the red flag of England floated over that fortress all summer. Other posts were not so fortunate in resisting Pontiac's conspiracy. Fort Sandusky, at the west end of Lake Erie; Fort Ouatanon, on the Wabash, a little south of where Lafayette, in the state of Indiana, now stands; Fort Miami, Presqu' Isle, Le Boeuf, Venango, on the eastern border, and Michilimackinac, on the straits, were all taken by the Indians. At Presqu' Isle the twenty-seven soldiers went into the blockhouse of the fort and prepared to hold it, lining and making it bullet-proof. A blockhouse was built of logs, or very thick timber, and had no windows, and but one door in the lower story. The upper story projected several feet all around, and had loopholes in the overhanging, floor, through which the men could shoot down. Loopholes were also fixed in the upper walls, wide within, but closing to narrow slits on the outside. A sentry box or lookout was sometimes put at the top of the roof. With the door barred by iron or great beams of wood, and food and ammunition stored in the lower room, men could ascend a ladder to the second story of a blockhouse and hold it against great odds, if the besiegers did not succeed in burning them out. Presqu' Isle was at the edge of Lake Erie, and the soldiers brought in all the water they could store. But the attacking Indians made breastworks of logs, and shot burning arrows on the shingle roof. All the water barrels were emptied putting out fires. While some men defended the loopholes, others dug under the floor of the blockhouse and mined a way below ground to the well in the fort where Indians swarmed. Buildings in the inclosure were set on fire, but the defenders of the blockhouse kept it from catching the flames by tearing off shingles from the roof when they began to burn. The mining party reached the well, and buckets of water were drawn up and passed through the tunnel to the blockhouse. Greatly exhausted, the soldiers held out until next day, when, having surrendered honorably, they were all taken prisoners as they left the scorched and battered log tower. For savages were such capricious and cruel victors that they could rarely be depended upon to keep faith. Pontiac himself was superior to his people in such matters. If he had been at Presqu' Isle, the garrison would not have been seized after surrendering on honorable terms. However, these soldiers were not instantly massacred, as other prisoners had been in war betwixt French and English, when savage allies could not be restrained. Next to Detroit the most important post was Michilimackinac.