W-what on earth does that cryptogram mean on the window pane in the photograph?
"North or south may be indicated in the cryptogram—when we discover it," said Marsland.
"Now as for the cryptogram which tempted you so sorely," went on the Baron smoothly.
Certainly it could be used to the greatest advantage as the key to a cryptogram.
Was I to tell of the cryptogram I had found beside the body, and its theft during the night?
