Whether it was the charm of the girl's society based upon his new discovery, or the interest of the conversation from a detective's point of view, that detained Herrick with her for over two hours, it is impossible to say. Probably Dr. Jim could not have given a satisfactory answer himself. But as he hurried along the road to the Carr Arms he acknowledged that he had been dilatory, for in two hours Robin could have got away from Saxham. But Dr. Jim did not think he would go. Robin was a child in many ways, and was not quick in making plans. Besides, he would be bewildered by the sudden revelation of his rascality and for the moment he would not be able to think of his own safety. Or at least if he did think, he would be unable to make any plans. Also--and of this Herrick was certain--he had very little money to come and go on. "No," thought the doctor, as he swung into the village green, "Robin knows better than to give me the slip. He would be afraid that I would show him no mercy when I caught him up. Probably he will make out some story and implore me for the sake of our past friendship to be silent. If he tells me the whole truth and if he did not actually kill Carr, I might--but then he insulted Bess, and tried to get her into danger." The doctor clenched his fist and frowned. "I'll give him a thrashing at all events. There is a bad time coming for you Robin my man." The prognostications of Dr. Jim proved to be correct. Joyce had not attempted flight. He was waiting in his sitting-room for the coming of the doctor, and he looked horribly frightened. Herrick could have found it in his heart to be sorry for the wretched little creature with his white haggard face and staring eyes; but he remembered what was at stake, and made up his mind to be stern even to the verge of brutality. For all he knew this treacherous little scoundrel might have hinted to the outside world that Bess was involved in the murder of Carr. If he had done this, Herrick considered that nothing would be too bad for him. It was in a very stern frame of mind that Dr. Jim sat down opposite his former friend. Robin winced at the regard of those once kind eyes. He felt like a rabbit in the presence of a boa-constrictor. "Well!" said Jim grimly eying the miserable wretch, "and what have you to say for yourself?" "Nothing!" returned Robin sullenly. "I am afraid I shall not be satisfied with that Joyce. You will have to tell me the whole of your doings, from first to last." "I have done nothing so very wrong Jim--" "One moment," interposed Herrick, "I think you had better call me by my last name. We are not friends now you know." "Will, I call you Dr. Herrick," said Robin with a small sneer. "I think it might be better--sir," drawled Herrick, and the contempt in his tone made the self-satisfied Joyce wince. "If I had done anything wrong I should not have waited to see you."