It chanced just then that, in view of a threatened invasion, the authorities were getting up a corps of volunteers, known as the Manx Fencibles, and that they called on the captains of the parishes to establish companies. Dan threw himself into this enterprise with uncommon vigor, took drills himself, acquired a competent knowledge of the rudiments in a twinkling, and forthwith set himself to band together the young fellows of his parish. It was just the sort of activity that Dan wanted at the moment, and in following it up the "Three Legs" saw him something oftener than before, and there the fellows of the baser sort drank and laughed with him, addressing him sometimes as captain, but oftener as Dan, never troubling themselves a ha'p'orth to put a handle to his name. This was a turn of events which Ewan could not understand. "I have been mistaken in the man," he thought; "there's no heart left in him." Toward the middle of December Jarvis Kerruish arrived at Ballamona, and forthwith established himself there in a position that would have been proper to the Deemster's heir. He was a young man of medium height and size, closely resembling the Deemster in face and figure. His dress was English: he wore a close-fitting undercoat with tails, and over it a loose cloak mounted with a brass buckle at the throat; he had a beaver hat of the shape of a sugar-loaf; and boots that fitted to his legs like gloves. His manner was expansive, and he betrayed a complete unconsciousness of the sinister bar of his birth, and of the false position he had taken up in the Deemster's house. He showed no desire to visit the cottage at the Cross Vein; and he spoke of the poor with condescension. When he met with Ewan he displayed no uneasiness, and Ewan on his part gave no sign of resentment. Mona, on the other hand, betrayed an instinctive repulsion, and in less than a week from his coming their relations had reached an extraordinary crisis, which involved Ewan and Dan and herself in terrible consequences. This is what occurred: