The Novel of the Black Seal
'Now the seal,' said Professor Gregg, and he handed me the black stone, a thing about two inches long, and something like an old-fashioned tobacco-stopper, much enlarged.
I held it up to the light, and saw to my surprise the characters on the paper repeated on the seal.
'Yes,' said the professor, 'they are the same. And the marks on the limestone rock were made fifteen years ago, with some red substance. And the characters on the seal are four thousand years old at least. Perhaps much more.'
'Is it a hoax?' I said.
'No, I anticipated that. I was not to be led to give my life to a practical joke. I have tested the matter very carefully. Only one person besides myself knows of the mere existence of that black seal. Besides, there are other reasons which I cannot enter into now.'
'But what does it all mean?' I said. 'I cannot