(Also called THE SPHINX OF THE ICE FIELDS) Jules Verne   CHAPTER I. THE KERGUELEN ISLANDS No doubt the following narrative will be received with entire incredulity, but I think it well that the public should be put in possession of the facts narrated in “An Antarctic Mystery.” The public is free to believe them or not, at its good pleasure. No more appropriate scene for the wonderful and terrible adventures which I am about to relate could be imagined than the Desolation Islands, so called, in 1779, by Captain Cook. I lived there for several weeks, and I can