The principal entrance into the fort, which presented four equal sides of a square, was from the forest; but, immediately opposite to this, and behind the apartments of the commanding officer, there was another small gate that opened upon the lake shore; but which, since the investment of the place, had been kept bolted and locked, with a precaution befitting the danger to which the garrison was exposed.  Still, there were periods, even now, when its sullen hinges were to be heard moaning on the midnight breeze; for it served as a medium of communication between the besieged and others who were no less critically circumstanced than themselves.

The very day before the Indians commenced their simultaneous attack on the several posts of the English, the only armed vessel that had been constructed on these upper lakes, serving chiefly as a medium of communication between Detroit and Michilimackinac, had arrived with despatches and letters from the former fort.  A well-concerted plan of the savages to seize her in her passage through the narrow waters of the river Sinclair had only been defeated by the vigilance of her commander; but, ever since the breaking out of the war, she had been imprisoned within the limits of the Huron.  Laborious indeed was the duty of the devoted crew.  Several attempts had been renewed by the Indians to surprise them; but, although their little fleets stole cautiously and noiselessly, at the still hour of midnight, to the spot where, at the last expiring rays of twilight, they had beheld her carelessly anchored, and apparently lulled into security, the subject of their search was never to be met with.  No sooner were objects on the shore rendered indistinct to the eye, than the anchor was silently weighed, and, gliding wherever the breeze might choose to carry her, the light bark was made to traverse the lake, with every sail set, until dawn.  None, however, were suffered to slumber in the presumed security afforded by this judicious flight.  Every man was at his post; and, while a silence so profound was preserved, that the noise of a falling pin might have been heard upon her decks, every thing was in readiness to repel an attack of their enemies, should the vessel, in her course, come accidentally in collision with their pigmy fleets.  When morning broke, and no sign of their treacherous foes was visible, the vessel was again anchored, and the majority of the crew suffered to retire to their hammocks, while the few whose turn of duty it chanced to be, kept a vigilant look-out, that, on the slightest appearance of alarm, their slumbering comrades might again be aroused to energy and action.