We talked at considerable length, discussing past and present happenings, and arranging our future line of action. Preston was immensely interested in the cypher messages unravelled by Dick—I had brought the cuttings with me to show to him and Jack. The reference to the date of the coming of age of Cranmere's son, considered in connection with the questions about Cranmere's seat, Eldon Hall, put to Osborne during his mysterious confinement in Grafton Street, made the detective almost excited. The unravelling of those cyphers was, he said, perhaps the most important discovery as yet made. Indeed, he believed that our knowledge of these messages might simplify matters Sufficiently to lead directly to the arrest of at any rate some members of the gang at a much earlier date than he had previously anticipated. "It is clear," he said, as he put the cuttings into the envelope again and handed them back to me, "that Gastrell and company contemplate a coup of some sort either on the day Lord Cranmere's son comes of age, or on one day during the week of festivities that will follow. 'Clun Cross.' We must find out where Clun Cross is; probably it's somewhere in Northumberland, and most likely it's near Eldon Hall. I suppose, Osborne, that you are invited to the coming of age, as you know Cranmere so well?" "Yes, and I mean to go. But Berrington isn't invited; he doesn't know Cranmere." "He probably knows what he looks like, though," Preston answered, laughing—he was thinking of his impersonation of the Earl, and his wonderful make-up. "I am not invited either, professionally or otherwise, so that Mr. Berrington and I had better go to Bedlington and put our heads together there, for something is going to happen at Eldon Hall, Osborne, you may take my word for that. We mustn't, however, forget that last cypher message: 'Osborne and Berrington suspect; take precautions.' 'Precautions' with such people may mean anything. I am firmly of opinion that poor Churchill's assassination was a 'precautionary' measure. It was on the afternoon before that murder, remember, that Churchill found the paste buckle at the spot where a grey car had been seen, left deserted, on the morning of the robbery at Holt. It was on the afternoon before that murder that he brought the buckle to Miss Challoner, told her about the grey car he had seen, which, he said, led him to suspect something, and asked to have the afternoon off. It was on that same afternoon that Mrs. Stapleton happened to motor over to Holt, and while there was told by Miss Challoner all about the finding of the buckle, also all about Churchill's secret suspicion about the car, and his asking to have the afternoon off, presumably to pursue his inquiries. And what happened after that? Don't you remember? Mrs. Stapleton telephoned from Holt to the Book Hotel in Newbury and talked to someone there—her maid, so she said—for five minutes or more, talked to her in Polish.