“Where, sir?” I asked, much surprised at this proposal.

“Why, on your stage,” the unknown said, with an air of authority; “and I trust you will not refuse me that pleasure.”

“I am vexed to deny you, sir; but that is impossible,” I said politely, knowing that in these grounds I could only meet persons who must be treated with respect.

“Why so?” the gentleman continued, most pressingly. “I find, on the contrary, nothing easier. If we cannot go in side by side, we can follow each other.”

“Pardon me, sir, if I refuse your request; but no stranger is allowed on my stage.”

“Very good,” my assailant then said, pleasantly; “if that is the case, I will tell you my name, so that I may be no longer a ‘stranger’ to you. I am Baron Brunnow, the Russian ambassador, as great an admirer of your mysteries as I am desirous to find them out.” And he continued his ascent, while striving to force the barrier. “What, Monsieur Robert-Houdin,” he added, “do you still refuse me this? I only ask one or two explanations, nothing more.”

“I must persist in my refusal, Monsieur le Baron, for several reasons, and, more especially, for this one——“

“What?”

“Your perspicuity and talent are so universally recognized, that I would not deprive you of the pleasure of yourself detecting these secrets, which are hardly worthy your powerful intellect.”

“Ah! ah!” the Baron replied, with a laugh, “how diplomatic we are. Do you wish to follow in my track?”