He was a man approaching middle age; low in stature, but broad, muscular, and powerful. He was clad in the full-dress uniform of a colonel of the United States Cavalry, wore boots reaching to the knee and decorated with large spurs; and his arms were an immense sabre and a brace of revolvers in black leather holsters attached to his belt. His face was swarthy, swollen by excess in drink apparently, and half covered by a shaggy beard and mustache as black as night. The eyes were deep-set, and wary: the poise of the head upon the shoulders, haughty; the expression of the entire countenance cold, phlegmatic, grim. Such was this man, upon the surface. But there was something more about him which irresistibly attracted attention, and aroused speculation. At the first glance, you set him down as a common-place ruffian, the prey of every brutal passion. At the second glance, you began to doubt whether he was a mere vulgar adventurer--you could see, at least, that this man was not of low birth. There was in his bearing an indefinable something which indicated that he had “seen better days.” The surface of the fabric was foul and defiled, but the texture beneath was of velvet, not “hodden gray.” “That brute,” I thought, “was once a gentleman, and crime or drink has destroyed him!” Darke continued to gaze at Swartz and the gray woman as they plied their busy work; and once or twice be pointed to drawers which they had failed to open. These directions were promptly obeyed, and the work went on. The few words which the parties uttered came in an indistinct murmur only through the window at which I was stationed. Such was the scene within the mansion, upon which I gazed with strong curiosity: suddenly the neigh of a horse was heard in a clump of woods beyond the front gate; and Darke quickly raised his head, and then came out to the portico. He passed within three feet of me, but did not perceive me, as I was concealed by one of the open venetians. Then he paused and listened. The wind sighed in the foliage, and a distant watch-dog was barking--that was all. No other noise disturbed the silence of the July night. Darke remained upon the portico for some moments, listening attentively. Then turned and re-entered the house. Through the window, I could see him make his appearance again in the illuminated apartment. In response to the glances of inquiry from his companions he made a gesture only, but that said plainly:-- “Nothing is stirring. You can go on with your work.” In this, however, he was mistaken. Darke had scarcely re-entered the apartment, when I discerned the hoof-strokes of horses beyond the front gate--then the animals were heard leaping the low fence--a moment afterward two figures came on at full gallop, threw themselves from the saddle, and rapidly approached the house.