The disaffected settlers were therefore, during the temporary absence of a number of those who still continued faithful to their contracts and their duty, incited to rob and pillage a fort belonging to the settlement, and of the cannon set out by the British Government for its defence. Armed sentinels were placed at different doors to prevent opposition, while a part of the Bois-Brulés and servants of the Nor'-Westers, under the command of Cameron, were stationed in arms within the distance of a few hundred feet for the purpose of giving support to the plunderers in case their force should be insufficient. Nine pieces of artillery were thus taken from the settlement and delivered to the North-West party in waiting, who received them with shouts of triumph and conveyed them to their headquarters, Fort Gibraltar. To celebrate this exploit Cameron gave a ball and entertainment to the parties engaged, on the following evening. [Sidenote: Attack on the settlement.] A camp was now established at a place called Frog Plain, about four miles below the settlement, by the servants and partisans of the North-Westers, under the command of McDonell. In June, 1815, after the colony had been thereby deprived of the means of defence, and was in great measure surrounded by its enemies, the whole force of Cameron's post, consisting of half-breeds, servants and North-West clerks, sallied forth to make a combined attack on the settlement. A sharp fire of musketry was kept up for some time on the Governor's house and adjacent buildings. In this attack only four persons belonging to the settlement were wounded, but one died soon after. Several days passed, the men encamped at Frog Plain received orders to march to the settlement, where they erected a battery against the building called the Government House, on which they planted a portion of the cannon previously taken. After a series of attacks and skirmishes, Governor McDonnell was obliged to surrender himself as a prisoner, and under a warrant from a partner in the North-West company, sent to Montreal, charged with an undue arrogance of authority to the detriment of the fur-trade.