Under the terms of the treaty with Great Britain, our navy was represented by a single vessel of war on Lake Erie, the steamer "Michigan," which carried a battery of eight or ten guns. She was ordered to Sandusky to co-operate with me at the same time that I was directed to go there. She was commanded by Captain John Carter, a bluff and hearty seaman of the old school, whom I found cordially ready to work with me in the most perfect harmony and mutual understanding. I lost no time in transporting my two rifled batteries to Cedar Point, and throwing up hasty earthworks to cover them. From the moment they were in position it was certain that no unarmed steamboat could enter the harbor. A part of my infantry was encamped in rear of the batteries, covered by a grove of evergreen trees, near enough to support the guns if an effort were made to land there. The rest of the infantry was assigned to increase the garrison on Johnson's Island itself. The news had spread that there was a concentration of our forces at Sandusky, and by the time we were ready for an attack the raiders were well aware that their plans had failed. Their project had not been a hopeless one if they could have kept it secret, but that was almost impossible. The leaders in it were commonly reported to have been some of Morgan's men who had made their way to Canada when he was captured. By the aid of Confederate agents they had procured the means to organize a considerable band of adventurers, and had chartered two steamboats which were to meet them at the mouth of the Detroit River. The assembly of such a body of men attracted the attention of the Canadian authorities, and information was sent to Lord Lyons at Washington. Our officers at Detroit also got wind of it, and employed the police and detectives to ferret out the facts. The raiders had assembled, and the boats were ready, when, on the 14th of November, they learned that their plans were exposed and the chance to succeed was lost. The less eager ones were quick to abandon the enterprise, and the bolder spirits found themselves reduced to a handful. So they scattered, threatening to try it again at some more convenient time.