[D] The acquisition of the treasure of the Kings of France, the second enigma of Cagliostro, and the discovery of that impenetrable retreat from which, fifteen years later, he could only be dislodged by the help of a flotilla of torpedo-boats, dates from this epoch. TRANSCRIBER’S NOTES: Italicized text is surrounded by underscores: _italics_. Obvious typographical errors have been corrected. Inconsistencies in hyphenation have been standardized. Archaic or variant spelling has been retained.