"Really?" drawing a long, astonished breath, "I could hardly have divined in you a temper so subtlely distrustful. Flinched? to be sure he did, poor fellow; you received him with so lame a welcome. As for his adroitly playing the madman, invidious critics might object the same to some one or two strolling magi of these days. But that is a matter I know nothing about. But, once more, and for the last time, to return to the point: why sir, did you warn me against my friend? I shall rejoice, if, as I think it will prove, your want of confidence in my friend rests upon a basis equally slender with your distrust of the lunatic. Come, why did you warn me? Put it, I beseech, in few words, and those English." "I warned you against him because he is suspected for what on these boats is known--so they tell me--as a Mississippi operator." "An operator, ah? he operates, does he? My friend, then, is something like what the Indians call a Great Medicine, is he? He operates, he purges, he drains off the repletions." "I perceive, sir," said the stranger, constitutionally obtuse to the pleasant drollery, "that your notion, of what is called a Great Medicine, needs correction. The Great Medicine among the Indians is less a bolus than a man in grave esteem for his politic sagacity." "And is not my friend politic? Is not my friend sagacious? By your own definition, is not my friend a Great Medicine?" "No, he is an operator, a Mississippi operator; an equivocal character. That he is such, I little doubt, having had him pointed out to me as such by one desirous of initiating me into any little novelty of this western region, where I never before traveled. And, sir, if I am not mistaken, you also are a stranger here (but, indeed, where in this strange universe is not one a stranger?) and that is a reason why I felt moved to warn you against a companion who could not be otherwise than perilous to one of a free and trustful disposition. But I repeat the hope, that, thus far at least, he has not succeeded with you, and trust that, for the future, he will not." "Thank you for your concern; but hardly can I equally thank you for so steadily maintaining the hypothesis of my friend's objectionableness. True, I but made his acquaintance for the first to-day, and know little of his antecedents; but that would seem no just reason why a nature like his should not of itself inspire confidence. And since your own knowledge of the gentleman is not, by your account, so exact as it might be, you will pardon me if I decline to welcome any further suggestions unflattering to him. Indeed, sir," with friendly decision, "let us change the subject." CHAPTER XXXVII THE MYSTICAL MASTER INTRODUCES THE PRACTICAL DISCIPLE. "Both, the subject and the interlocutor," replied the stranger rising, and waiting the return towards him of a promenader, that moment turning at the further end of his walk. "Egbert!" said he, calling.