On the 29th of May, after the blockade had been going on for three weeks, the long-expected boats from Niagara, which had been summoned by Major Gladwin in the first days of the siege, were seen rounding the wooded point below the fort, the red flag of England flying at their sterns. All was rejoicing within the fort until, as the boats came nearer, the English saw that they were occupied and guided by Indians. Three Englishmen who escaped to the fort brought a mournful tale of a night attack and seizure of the boats at the mouth of the Detroit River, and also of the destruction of Sandusky and Presque Isle. This was the first of many reports that were to come during that month of similar successful attacks, until the little garrison at Detroit was the only one left on the upper lakes. The remaining Englishmen of the rescuing party were massacred that night in the Indian camp. Towards the end of June Pontiac sent another summons to surrender, saying that nine hundred Indians from the north were on their way to join him. Major Gladwin refused to consider terms till Captain Campbell and Lieutenant McDougall were returned to him, and once more hostilities were resumed. On the 30th of June the _Gladwin_, which about the middle of May had eluded the Indians and slipped down the river to Niagara, succeeded in making her way up the river and landing at the fort a force of fifty men, together with much-needed provisions and ammunition. She brought the news that peace had been formally concluded between England and France. While many of the French-Canadians refused to admit the truth of this report and continued to romance to the Indians about large French armies that were approaching, forty settlers accepted their new position as English subjects and took service under Gladwin. Through them the English officers were kept even better informed of what went on without the fort than before, but always throughout the blockade there seem to have been daily reports from some source of what happened in the Indian camp, as well as frequent sorties from the fort.