The discovery caused me much disappointment, for beyond the assumption that a certain person whose initials were N.S. had been imprisoned in the cell, together, perhaps, with a comrade whose initials were S.O., who had possibly sketched the obscure hieroglyphics, I was no nearer the solution of the device than before.

It might have been inscribed a dozen, perhaps a hundred, years ago—before the seal had become synonymous of death—for aught I knew.

So intent was I in endeavouring to feel other names or devices near this particular one that I failed to notice the opening of my cell door, and when I became aware of the lantern-light behind me I turned and saw a Cossack officer standing upon the threshold.

He stepped forward and was about to enter, but suddenly, as if on second thought, he drew back and pulled up the broad collar of his riding-coat about his neck, so as to partially hide his face before entering.

Advancing, and turning the lamplight full upon my face, he gazed into it fixedly for several seconds, his own countenance being concealed by the shadow. Then, without speaking, he went across the cell and commenced examining the wall, apparently to ascertain in what pursuit I was engaged when he entered.

He cast his eyes along the wall, when he suddenly gave vent to a low exclamation of profound surprise, not unmingled with horror, and holding his lantern on a level with the inscription, scrutinised it minutely for some minutes, at the same time muttering to himself.

From his movements, and the agitation which he strove to suppress, it was evident he, too, had made a startling discovery; and I stood wondering what there was about it that interested him so much.

He looked at me several times, and though his face was always in the shade I could see that in his eyes was a peculiar expression. Twice he returned and examined the inscription, as if to rivet it upon his memory and to satisfy himself he was not mistaken; then he turned, and, addressing me in French, said:

“Prisoner, prepare yourself. We start to-morrow.”

“To Siberia?” I asked.