The siege of Detroit went on. Towards the middle of June, Jacques Baby brought word to the commandant that the _Gladwyn_ was returning from the Niagara with supplies and men, and that the Indians were making preparations to capture her. A few miles below Detroit lay Fighting Island; between it and the east shore, Turkey Island. Here the savages had erected a breastwork, so carefully concealed that it would be difficult even for the keenest eyes to detect its presence. The vessel would have to pass within easy range of this barricade; and it was the plan of the Indians to dart out in their canoes as the schooner worked up-stream, seize her, and slay her crew. On learning this news Gladwyn ordered cannon to be fired to notify the captain that the fort still held out, and sent a messenger to meet the vessel with word of the plot. It happened that the _Gladwyn_ was well manned and prepared for battle. On board was Cuyler with twenty-two survivors of the ill-starred convoy, besides twenty-eight men of Captain Hopkins's company. To deceive the Indians as to the number of men, all the crew and soldiers, save ten or twelve, were concealed in the hold; to invite attack, the vessel advanced boldly up-stream, and at nightfall cast anchor in the narrow channel in front of Turkey Island. About midnight the Indians stealthily boarded their canoes and cautiously, but confidently, swept towards her with muffled paddles. The _Gladwyn_ was ready for them. Not a sound broke the silence of the night as the Indians approached the schooner; when suddenly the clang of a hammer against the mast echoed over the calm waters, the signal to the soldiers in the hold. The Indians were almost on their prey; but before they had time to utter the war-whoop, the soldiers had come up and had attacked the savages with bullets and cannon shot. Shrieks of death arose amid the din of the firing and the splash of swimmers hurriedly making for the shore from the sinking canoes. In a moment fourteen Indians were killed and as many more wounded. From behind the barricade the survivors began a harmless musketry fire against the schooner, which simply weighed anchor and drifted down-stream to safety. A day or two later she cleared Turkey Island and reached the fort, pouring a shattering broadside into the Wyandot village as she passed it. Besides the troops, the _Gladwyn_ had on board a precious cargo of a hundred and fifty barrels of provisions and some ammunition. She had not run the blockade unscathed, for in passing Turkey Island one sergeant and four men had been wounded. There was rejoicing in the fort when the reinforcement marched in. This additional strength in men and provisions, it was expected, would enable the garrison to hold out for at least another month, within which time soldiers would arrive in sufficient force to drive the Indians away.