Being, as we have had occasion to remark before, a communicative and confiding little woman, Netta Tipps told the secret of the ring in strict confidence to her old nurse. Mrs Durby, in a weak moment as on a former occasion, related the history of it to Gertie, who of course told Loo. She naturally mentioned it to her lover, Will Garvie, and he conveyed the information to John Marrot. Thus far, but no further, the thing went, for John felt that there might be danger in spreading the matter, and laid a strict injunction on all who knew of it to keep silence for a time. While at the station the day following, just after having brought in the "Flying Dutchman," he was accosted by the superintendent of police, who chanced to be lounging there with, apparently, nothing to do. Never was there a man who was more frequently called on to belie his true character. It was a part of Mr Sharp's duty to look lazy at times, and even stupid, so as to throw suspicious men off their guard. "A fine day, John," he said, lounging up to the engine where John was leaning on the rail, contemplating the departure of the passengers whose lives had been in his hands for the last hour and a half, while Will Garvie was oiling some of the joints of the iron horse. John admitted that it was a fine day, and asked what was the noos. "Nothing particular doing just now," said Mr Sharp. "You've heard, I suppose, of the mad fellow who caused such a confusion among Miss Tipps's Sunday-school children last night?" "Oh yes, I heard o' that." "And did you hear that he turns out to be the man who jumped out of your train on the day of the attempted robbery?" "Yes, I've heard o' that too. They haven't got him yet, I believe?" "No, not yet; but I think we shall have him soon," said Mr Sharp with a knowing glance; "I've heard rumours that lead me to think it would not be very surprising if we were to see him hanging about this station to-day or to-morrow. I've got a sort of decoy-duck to attract him," continued Mr Sharp, chuckling, "in the shape of a retired East India doctor, who agrees to hang about on the condition that we keep a sharp eye on him and guard him well from any sudden attack." "You don't mean _that_?" said the engine-driver in an earnest undertone. Instead of replying, the superintendent suddenly left him and sauntered leisurely along the platform, with his eyes cast down and softly humming a popular air. The act was so brusque and unlike Mr Sharp's naturally polite character that John knew at once, as he said, that "something was up," and looked earnestly along the platform, where he saw Thomson himself walking smartly about as if in search of some one. He carried a heavy-headed stick in his hand and looked excited; but not much more so than an anxious or late passenger might be.