.M .ERE ..E SL.NE.

“Now the first letter can only be A, which is a most useful discovery, since it occurs no fewer than three times in this short sentence, and the H is also apparent in the second word. Now it becomes:

AM HERE A.E SLANE.

Or, filling in the obvious vacancies in the name:

AM HERE ABE SLANEY.

I had so many letters now that I could proceed with considerable confidence to the second message, which worked out in this fashion:

A. ELRI. ES.

Here I could only make sense by putting T and G for the missing letters, and supposing that the name was that of some house or inn at which the writer was staying.”

Inspector Martin and I had listened with the utmost interest to the full and clear account of how my friend had produced results which had led to so complete a command over our difficulties.

“What did you do then, sir?” asked the inspector.