"Well, you remember Delapine?"

"What, that youthful professor who gave such a wonderful course of lectures on physics in the laboratory at the Sorbonne?"

"The same," answered Villebois. "He is staying for some time with us at Passy, and is giving us the most wonderful exhibitions of his powers. Talk about a genius, the recitals of his experiences, his inventions, and his discoveries fairly dazzles one; and, in addition, he declares that he possesses such extraordinary mediumistic powers that he can call up spirits at will."

"But I thought that you did not believe in these extraordinary psychic forces, that you were too well grounded in natural science to believe in any phenomena which are incapable of being treated mathematically, or which could not be subjected to the rigid tests of the laboratory."

"That is so," answered Villebois. "If I had not witnessed these phenomena with my own eyes, and subjected them to my own tests I should have felt disposed to put them down to charlatanism. At first, I was inclined to think that he was 'off his head,' but when you hear him talk with such brilliancy and logic, and when you see him with your own eyes perform the things which I have seen him do, you will agree that there is not a saner man to-day in the whole of our beloved Paris. At times again, his brain appears to be too big for him, and he is apt to go off into fainting fits—or trances, as he calls them—and on occasions he remains for hours in that state: you could almost swear that he was dead, and yet he wakes up as fresh as the proverbial daisy, to amaze us all with the recital of experiences during the trance."

"How extraordinary; forgive my previous mockery, my dear Villebois. I assure you I am as anxious now as I was indifferent before about meeting your friend. Perhaps he may have some recollection of me."

"Ah, I thought you would want to meet him, and I can assure you that you will not regret it. Pack up and come and stay with us at Passy. There are several charming people staying with us including Renée, the daughter of old Payot. You know whom I mean. Then there is Monsieur Marcel, a philosopher and poet, a cynic in a way, but a first-rate fellow notwithstanding, and lastly a most inquisitive and argumentative young lawyer—Monsieur Duval. With you, my dear colleague, the party will be complete, especially as you are an exponent and past master of agnosticism combined with a mind open to conviction, and possess an aptitude for strictly scientific investigation. I have no doubt that between us we ought to be capable of sifting these mysteries to the bottom. If there is any trickery about it, I can rely on your finding it out and exposing it, but I am fully convinced beforehand that you will not find any."

"Que diable, but I have seen enough of Delapine to know that he is incapable of humbug or trickery. All the same, my dear confrère, you have infected me with your enthusiasm, and the programme that you offer me is as tempting as a première at the opera."

"Including the renewal of your acquaintance with the charming Mademoiselle Payot," added Villebois with a smile.