''This mine then really exists?' I said, my incredulity giving way to
the most ardent curiosity.

''Really exists! yes, my friend; if you listen, I will dispel all doubt
of that.'


X.

''On arriving in this country, my first step was to procure a guide and
the necessary equipage for reaching the opal mine. Although I felt sure
of its existence, I could not dispel the fear that the story of its
marvelous richness would prove false. Without loss of time, I started;
for to me it was a question of life and death. I had, however, barely
accomplished a third of the journey, when I was prostrated by fever. The
fatigue of traveling in the interior of this magnificent but wretched
country, combined with excitement and anxiety, preyed upon my mind, and
brought on an illness, from which at one time I gave up all hope of
recovering. I was compelled to return to Vera Cruz. The doctors were all
of the opinion that several months of perfect repose would be necessary
before I could undertake another such journey. Several months--oh! how
those words fell on my ears; they sounded like the knell of all my
hopes. A thousand expedients floated through my brain, and in adopting
the course I eventually did, time alone will prove whether I followed
the promptings of a good or evil genius. One evening, I explained to my
attendant that I was a medical man, deeply interested in botanical and
mineralogical discoveries; that my object in undertaking my recent
journey was to collect certain rare herbs and a singular description of
shell. I laid peculiar stress on the herbs, and added in relation to the
shells, that I merely wanted a few specimens, as they were rare in my