But now his bearing altered again in a very extraordinary way. His gait fell once more to a saunter and his angling enthusiasm seemed suddenly to have returned, for he frequently studied the burn as he strolled along, and there was no sign of any thoughtfulness on his ingenuous countenance. There were a few willows beside the path, and the path itself meandered, and this was doubtless the reason why he appeared entirely unconscious of the approach of another foot passenger till they were within a few yards of one another. And then Mr. Carrington stopped suddenly, seemed to hesitate, pulled out his watch and glanced at it, and then with an apologetic air raised his hat. The other foot passenger was face to face with him now, a slim figure in black, with a sweet, serious face. "Excuse me," said Mr. Carrington, "but can you tell me where this path leads?" He was so polite and so evidently anxious to give no offence, and his face was such a certificate to his amiable character that the girl stopped too and answered without hesitation: "It leads to Keldale House." "Keldale House?" he repeated, and then the idea seemed to arouse associations. "By Jove!" he exclaimed. "Really? I'm an utter stranger here, but isn't that the place where the murder took place?" Had Mr. Carrington been a really observant man, one would think he would have noticed the sudden change of expression in the girl's face--as if he had aroused painful thoughts. He did seem to look at her for an instant as he asked the question, but then turned his gaze towards the distant glimpse of the house. "Yes," she murmured and looked as though she wanted to pass on; but Mr. Carrington seemed so excited by his discovery that he never noticed this and still stood right in her path. "How very interesting!" he murmured. "By Jove, how very interesting!" And then with the air of passing on a still more interesting piece of news, he said suddenly, "I hear they have arrested Sir Malcolm Cromarty." This time he kept his monocle full on her. "Arrested him!" she cried. "What for?" This question, put with the most palpable wonder, seemed to disconcert Mr. Carrington considerably. He even hesitated in a very unusual way for him. "For--for the murder, of course." Her eyes opened very wide. "For Sir Reginald's murder? How ridiculous!" Again Mr. Carrington seemed a little disconcerted. "Er--why is it ridiculous?" he asked. "Of course, I--I know nothing about the gentleman." "Evidently!" she agreed with reproach in her eyes. "If Sir Malcolm really has been arrested, it can only have been for something quite silly. He couldn't commit a murder!" The fact that this tribute to the baronet's innocence was not wholly devoid of a flavour of criticism seemed to strike Mr. Carrington, for his eye twinkled for an instant. "You are acquainted with him then?" said he. "I am staying at Keldale; in fact, I am a relation."