Upon this occasion, however, the only guest was a young and handsome man, whose sunburnt countenance and military gait bespoke the soldier, while a double stripe of gold lace on the cuff of his blue frock-coat, marked his rank as that of lieutenant-colonel. Although not more than thirty years of age, Don Ignacio Guerra had already attained a grade which is often the price of as many years' service; but his rapid promotion was so well justified by his merit and gallantry, that few were found to complain of a preference which all felt was deserved. Both by moral and physical qualities, he was admirably suited to the profession he had embraced. Slender in person, but well knit and muscular, he possessed extraordinary activity, and a capacity of enduring great fatigue. Indulgent to those under his command, and self-denying in all that regarded himself personally, his enthusiasm for the cause he served was such, that during nearly two years that he had been the accepted lover of Donna Gertrudis Olana, this was only the second time he had left his regiment for a few days' visit to his affianced bride. He had arrived at Logroño the preceding day from a town lower down the Ebro, where the battalion he commanded was stationed; and Don Torribio, with whom he was a great favourite, had lost no time in taking him out to the _Retiro_; nor, perhaps, were the lovers sorry to leave the noise and bustle of the town for this calm and peaceful retreat. It was about an hour after sunset, and Don Torribio sat dozing in an arm-chair, with his old black dog Moro coiled up at his feet, and his niece Teresa beside him, busying herself in the arrangement of a bouquet of choice flowers, while at the other end of the balcony Gertrudis and her lover were looking out upon the garden. The silence was unbroken, save by the splashing noise of the fountain as it fell back upon the water-lilies that covered its basin. The moon was as yet concealed behind the high ground to the right of the house; but the sky in that direction was lighted up by its beams, and the outline of every tree and bush on the summit of the hill was defined and cut out, as it were, against the clear blue background. Suddenly Gertrudis called her companion's attention to the neighbouring mountain. "See, Ignacio!" exclaimed she, "yonder bush on the very highest point of the hill! Could not one almost fancy it to be a man with a gun in his hand? and that clump of leaves on the top bough might be the _boina_ of one of those horrid Carlists?" While she spoke the officer ran his eye along the ridge of the hill, and started when he caught sight of the object pointed out by Gertrudis; but before he could reply to her remark, she was called away by her father. At that moment the supposed bush made a sudden movement, and the long bright barrel of a musket glittered in the moonbeams. The next instant the figure disappeared as suddenly as though it had sunk into the earth.