“In heaven’s name, what is it?” he asked. “We have been asked not to photograph it. Possibly the light would infuriate it. The command through the medium was definite. We can only say that it is either an ape-like man or a man-like ape. We have seen it more clearly than to-night. The face is Simian, but the brow is straight; the arms long, the hands huge, the body covered with hair.” “Tom Linden gave us something better than that,” whispered Mailey. He spoke low but Richet caught the words. “All nature is the field of our study, Mr. Mailey. It is not for us to choose. Shall we classify the flowers but neglect the fungi?” “But you admit it is dangerous.” “The X-rays were dangerous. How many martyrs lost their arms, joint by joint, before those dangers were realised. And yet it was necessary. So it is with us. We do not know yet what it is that we are doing. But if we can indeed show the world that this Pithecanthropus can come to us from the Invisible, and depart again as it came, then the knowledge is so tremendous that even if he tore us to pieces with those formidable claws, it would none the less be our duty to go forward with our experiments.” “Science can be heroic,” said Mailey. “Who can deny it? And yet I have heard these very scientific men tell us that we imperil our reason when we try to get in touch with spiritual forces. Gladly would we sacrifice our reason, or our lives, if we could help mankind. Should we not do as much for spiritual advance as they for material?” The lights had been turned up and there was a pause for relaxation before the great experiment of the evening was attempted. The men broke into little groups, chatting in hushed tones over their recent experience. Looking round at the comfortable room with its up-to-date appliances, the strange bird and the stealthy monster seemed like dreams. And yet they had been very real, as was shown presently by the photographer, who had been allowed to leave and now rushed excitedly from the adjacent dark room waving the plate which he had just developed and fixed. He held it up against the light, and there, sure enough, was the bald head of the medium sunk between his hands, and crouching closely over his shoulders the outline of that ominous figure. Dr. Maupuis rubbed his little fat hands with glee. Like all pioneers he had endured much persecution from the Parisian Press, and every fresh phenomenon was another weapon for his own defence. “_Nous marchons! Hein! Nous marchons!_” he kept on repeating, while Richet, lost in thought, answered mechanically: “_Oui, mon ami, vous marchez!_” The little Galician was sitting nibbling a biscuit with a glass of red wine before him. Malone went round to him and found that he had been in America and could talk a little English. “Are you tired? Does it exhaust you?” “In moderation, no. Two sittings a week. Behold my allowance. The doctor will allow no more.” “Do you remember anything?”