This frustrated all of the great chief’s carefully laid plans, and the attack was postponed. Three days later Pontiac again asked admittance to the fort, but was refused. Knowing that in some way his plot had been revealed to the English, Pontiac at once began his attack and for several hours fought desperately to take the stronghold, but was repulsed again and again with great loss. Desultory fighting, attacks and counter-attacks, were frequent features of the siege that followed. Meanwhile twenty boats and a hundred men, together with a large quantity of supplies, had left Fort Niagara for Detroit under the command of Lieutenant Cuyler, and these reinforcements were anxiously awaited by the besieged. They were destined never to reach Detroit. On June 28th, Lieutenant Cuyler and his command landed on Point Pelee with the intention of camping there for the night. Hardly had they drawn their boats upon the beach when they were greeted by a tremendous volley of musketry, and with frightful yells a horde of savages rushed down upon them from their ambush. Taken completely by surprise the English made no resistance but fled precipitately for their boats. Less than forty men, many of them wounded, escaped in three boats and made for Fort Sandusky, which they found had been destroyed. All hope of reaching Detroit was now abandoned and the worn and wounded remnants of the reinforcing party rowed back to Niagara. Meanwhile the condition of the garrison at Detroit was becoming desperate. Both ammunition and food were becoming exhausted, many of the defenders were wounded or sick, and each day seemed to add to the strength of the savage besiegers. On the morning of June 30th, seven weeks after the beginning of the siege, a large number of boats flying the English flag were seen coming up the river. Joy gave place to horror when it was seen that these boats were filled with Indians and with white prisoners, the latter being those who were captured at Point Pelee. While these savage victors had been making their way westward, Lieutenant Cuyler and his handful of fugitives were on their way to Niagara, where they brought news of the destruction of Fort Sandusky and of the possible fate of Detroit. At Fort Niagara was the armed schooner _Gladwin_, named after the defender of Detroit, and on July 21st, she sailed for the besieged fort carrying with her supplies and a reinforcement of sixty men. On the night of the 23d, while the schooner was lying becalmed between Fighting Island and the mainland in the Detroit River, she was attacked by the Indians, who were completely repulsed. For several days, while slowly making her way up the river against headwinds and current, the cannon of the _Gladwin_ spread consternation and havoc among the savages along the shores. Late in July, Captain Dalzell arrived with a score of barges, bringing cannon, ammunition, supplies, and an additional force of three hundred men. Pontiac, however, was still hopeful of success. His