Page:The Mystery of the Sea.djvu/129

Rh "Treasure Cave cliff one and half degree Northe of East from outer rock."

Then and then only did I feel tired. The sun was well up but I tumbled into bed and was asleep in a moment.

The gong was sounding for breakfast when I awoke. After breakfast when I resumed my work I set myself to construct a variant of my number key to suit the dotted letters, for my best chance, now that I was on the track was to construct rather than to decipher. After some hard work I at last constructed a cipher on this plan.

I then began therefore to apply my new key to the copy of the cipher in the printed pages.

I worked steadily and completed the whole of the first page, writing down only the answer to those combinations which fitted into my scheme, and leaving all doubtful matters blank. Then I laid aside my key, and with a beating heart glanced over the result.

It more than satisfied me, for in the scattered letters though there were many blanks, was manifestly a connected narrative. Then I took the blanks and worked at them altering my key to suit the scheme of the original writer, till by slow degrees I had mastered the secret of the cipher construction.

From that hour on, till I had translated the cipher writing from beginning to end I knew no rest that I could avoid. I had to take my meals, and to snatch a few hours of sleep now and again; for the labour of translation was very arduous and slow, and the strain on my eyes was too great to be kept up continuously; with each hour, however, I acquired greater facility in the work. It was the evening of the fourth day, however,