"She may have done so, but it is too great an assumption to make without proof," returned Colwyn. "You must be perfectly well aware, Mr. Merrington, that this belated discovery is of the utmost importance to the Crown case, one way or the other. If you can prove that Hazel Rath stole the necklace, it gives you an unassailable case against her. If the necklace was stolen by somebody else, you are confronted with a new and strange aspect of this murder." "Not to the extent of lessening the strength of the case against this girl," replied Merrington doggedly. "She was seen going to the staircase leading to Mrs. Heredith's room just before the murder; her brooch was found upstairs in the room; and the revolver and her handkerchief were found concealed in her mother's rooms. Add to that, her silence under accusation, and it is impossible to get away from the belief that she, and nobody else, murdered Mrs. Heredith." "I am not attempting to controvert your theory or contradict your facts," rejoined Colwyn coldly. "My visit is to bring under your notice a fresh fact in the case which needs investigation. Whether that fact squares with your own theory or not, it is too important to be disregarded or overlooked. That is why I left the moat-house immediately I discovered it. I felt that you had been ignorantly misled, and that it was only right you should be told without delay." Merrington was conscious of that evanescent feeling which men call gratitude. His impulse of thankfulness towards the man opposite him was all the keener for the realization that he would not have acted so generously if he had been in Colwyn's place. But his gratitude was speedily swallowed up by the knowledge that he had been led astray, and his anger was mingled with the determination to find a scapegoat. "I am obliged to you for your information, although I do not attach quite so much importance to it as you do," was his careful rejoinder. "But I certainly blame Detective Caldew for not finding it out before you did. He made the original inquiries at the moat-house, and he seems to have made them very carelessly. He said nothing to the Chief Constable of Sussex or myself, when we arrived, about a jewel-case, locked or open." "He didn't know himself." "It was his duty to inquire. When he assured us, on the authority of Miss Heredith, that nothing was missing, I naturally assumed that he had made the proper inquiries. But I thank you for letting me know, and I shall, of course, have investigations made. But I should like to know why young Heredith interfered and brought you into the case?" "For one thing, he has a strong belief in Hazel Rath's innocence." "Mere sentiment," replied Merrington contemptuously. "Perhaps he's still sweet on the girl."