We knew that upon poor Gabrielle, the girl I loved with all my heart and soul, the deadly drug had done its work—and that she was, alas! incurable!

Her case was hopeless, even in the hands of the one man in all Europe who knew the effects of orosin and had only in two cases effected cures.

I looked at her mother in silence. She knew my thoughts, for tears were now coursing down her pale cheeks.

Both of us knew the worst. Our journey had been in vain.

That thought caused me to grit my teeth against De Gex and his unholy hirelings. I would follow and unmask them. I would avenge the innocent girl whom I loved so dearly, even though it should cost me my life!


CHAPTER THE TWENTY-FOURTH

YET ANOTHER MYSTERY

The first week in August was unusually hot and dry in London.