Accordingly they set a proper watch, and lay concealed until they were informed of Trebasi's having gone forth; when they mounted their horses, and rode into the neighbourhood of the castle. Having made a small excursion in the adjoining fields, they drew nearer the walls, and at an easy pace had twice circled them, when Farrel descried, at the top of a tower, a white handkerchief waved by a woman's hand through the iron bars that secured the window. This signal being pointed out to Renaldo, his heart began to throb with great violence; he made a respectful obeisance towards the part in which it appeared, and perceiving the hand beckoning him to approach, advanced to the very buttress of the turret; upon which, seeing something drop, he alighted with great expedition, and took up a picture of his father in miniature, the features of which he no sooner distinguished, than the tears ran down his cheeks; he pressed the little image to his lips with the most filial fervour; then conveying it to his bosom, looked up to the hand, which waved in such a manner as gave him to understand it was high time to retire. Being by this time highly persuaded that his kind monitor was no other than the Countess herself, he pointed to his heart, in token of his filial affection, and laying his hand on his sword, to denote his resolution of doing her justice, he took his leave with another profound bow, and suffered himself to be reconducted to his lodging. Every circumstance of this transaction was observed by the servants of Count Trebasi, who immediately despatched a messenger to their lord, with an account of what had happened. Alarmed at this information, from which he immediately concluded that the stranger was young Melvil, he forthwith quitted the chase, and returning to the castle by a private postern, ordered his horse to be kept ready saddled, in hope that his son-in-law would repeat the visit to his mother. This precaution would have been to no purpose, had Renaldo followed the advice of Farrel, who represented the danger of returning to a place where the alarm was undoubtedly given by his first appearance; and exhorted him to return to Vienna for the prosecution of his suit, now that he was satisfied of his mother's being alive. In order to strengthen this admonition, he bade him recollect the signal for withdrawing, which was doubtless the effect of maternal concern, inspired by the knowledge of the Count's vigilance and vindictive disposition.