Punch, or the London Charivari, Vol. 147, October 28, 1914
Chapter 13
Across the smooth waters of the English Channel a motor-boat moved swiftly. In the bows the Foreign Secretary and the detective gazed earnestly forward.
Presently the latter clutched Carmichael's arm with an oath. Another boat had come into view, and they perceived that a diver in full costume was climbing into it.
The motor-boat came to a stop alongside the other. It could be seen that the diver held in his hand a ball of paper.