wall of his private room. It was safe when he arrived in the morning, and he immediately used it in order to code a telegram, and locked it in the safe again at 10.20. Two hours later, at 12.20, he went to the safe for it again, in order to de-code a message just received, and it was gone! And the lock of the safe is one that would take hours to pick, I should judge. There isn't a shade of a clue, so far as I can see, except this circumstance of Mayes being seen leaving by Corder—just between Telfer's two visits to the safe, you perceive. And of course there may be nothing in that, except for the character of the man. And that's all there is to go on, as far as I can see. I needn't tell you how important the thing is at a time like this, and how much would be paid for that secret code by a certain foreign Government. We have made hurried arrangements to have certain places watched, and as soon as I have taken you to the office I must rush off and make a few more arrangements still. But here we are."
Mr. Robert Telfer's room was at the side of a long and gloomy corridor on the upper floor, and the door was distinguished merely by a number and the word "Private" painted thereon. We found Mr. Telfer sitting alone, and plainly in a state of great nervous tension. He was a man of forty or there-
