"Just so," Harvey Grimm assented. "Now what about those two sets of fishing-rods there?" The detective fingered the label and read the address aloud. "'_Mr. Harvey Grimm, The Crown Hotel, Exford._'" "That, of course," Harvey Grimm continued drily, "is not evidence, as the label is in my own handwriting, but you will find that the golf clubs there bear a railway label, I think." The detective turned the bag around and nodded. "Very interesting," he admitted, "but Exford--at this time of the year!" "You're no sportsman, Brodie," Harvey Grimm said reproachfully, "or you'd know all about the March trout. Just a moment. Come back into the sitting-room." He led the way, searched for a moment on the sideboard and threw a Daily Mirror on to the table. Brodie adjusted his eyeglasses. In the left-hand corner of one of the inner pages was a small picture of a man fishing, and underneath:-- _Fine catch of Mr. Harvey Grimm, a London sportsman, in the River Ex, last Monday._ "Quite a good likeness, too," the detective observed, as he laid down the newspaper. "Say, this is very interesting, Grimm! It disposes altogether of one of my theories. I had no idea that you possessed such simple tastes. I've done a little sea-fishing myself. Well, well! Still--now, Ditchwater!--you got back in time last night to help yourself to Madame de Borria's necklace!" It was all an affair of seconds. Ditchwater had suddenly caught Harvey Grimm's two arms from behind whilst Brodie's hand had dived into his coat pocket. The necklace glittered upon the table. There was a moment's intense silence. Brodie was breathing quickly. There was a gleam of triumph in his eyes. "Dear me," Harvey Grimm exclaimed, "fancy your finding that!" The detective bent over his prize. "The middle diamond is, without doubt," he announced, "a rose diamond. Quite a peculiar red light. Ditchwater, step round to Madame de Borria's rooms. Ask her if she will be so good as to come here at once." The inspector disappeared. Harvey Grimm relit his cigarette, took off his overcoat in a dazed way, threw it over the back of a chair, and hung up his hat. "I shouldn't bother to do that, Grimm," the detective advised him quietly. "I am afraid we shall have to ask you to come and pay us a little visit. You've got plenty of common sense, I know. It isn't necessary, I suppose, to tell you that there are a couple more men in the corridor?" "I've no idea of making a fool of myself," Harvey Grimm replied, "but do you mind if I help myself to a whisky and soda? Your methods are a little nerve-shaking." The detective stepped in front of the sideboard. "Say, I don't believe for a moment, Grimm," he said, "that you're up against it badly enough for that, but I don't think I'd worry about a drink just now." "Mix it for me yourself, then," the other suggested.