"This mysterious end, so in keeping with Cagliostro's mysterious origin and personality, appeals to the imagination. Nothing excites curiosity like a mystery. Since his death there have been as many attempts to lift the veil in which his end is shrouded as were made in his lifetime to discover the secret of his birth. Of these specimens of sheer futility, Madame Blavatsky's is the most interesting, the most unlikely, and the most popular among the believers in the supernatural who have allowed their imaginations to run riot on Cagliostro generally."