In the autumn of 1798, tidings reached Mr Douglas of the death of the elder of his half-brothers. The event rendered necessary his immediate return to England, and he took a passage in the last ship of the season, a little brig, timber-laden and bound for Greenock. It seems to have been his destiny never to go to sea without encountering danger and difficulty. One night, shortly after clearing the Bay of St Lawrence, Mr Douglas was awakened by the vessel giving a sudden lurch, for which he could not account otherwise than by supposing she had struck on some sunken rock. He jumped out of bed, and, staying only to throw a greatcoat about him, ran upon deck. A brisk gale was blowing, and the brig, having got into the trough of the sea, staggered under single-reefed topsails, main-top-gallant-sails, and jib, and fore-and-aft main-sail, with the wind on the beam. The mate, whose watch it was, had got drunk, and gone below, and the helmsman seemed quite at a loss how to guide the rudder. Douglas saw that there was not a moment to be lost. He took the command of the ship, called up all hands, issued with clearness and promptitude orders which were instantly obeyed, and kept the vessel from foundering. The tumult brought the captain on deck, who stood by astonished and speechless. No sooner, however, had he satisfied himself of the untrustworthiness of the mate, than he directed the vessel to be put about, and would have returned to Quebec had not Mr Douglas volunteered to do mate’s duty during the remainder of the passage. There could be no hesitation on the captain’s part, after what he had just seen, to accede to this proposal: so the brig held her course, and arrived safe in the Clyde, where, with protestations of mutual respect and esteem, he and his friendly skipper parted. Mr Douglas had not been long in Scotland before he fell in love, and soon afterwards married Miss Anne Dundas, a young lady of great personal beauty and cultivated mind. He obtained his promotion likewise in 1799; and having done duty for a while as adjutant of a battalion, he was subsequently posted to the horse-artillery. But better things than the command of a troop were in store for him. The military authorities had established at High Wyckham a cadet school, with a senior department attached to it, in which officers might be instructed for the Staff; and General Zamy, an old aide-de-camp of Frederick the Great, being appointed commandant, it was proposed to Captain Douglas that he should undertake the superintendence of the Staff College. Captain Douglas was not unnaturally reluctant to give up the proper line of his profession, but finding the Duke of York bent upon the arrangement, and being tempted to accede to it by the offer of a step of rank, he passed from the artillery into the line as a major, and took the place for which both his natural talents and acquired information eminently fitted him.