In the early hours of March 1911, a man wakes up in his bedroom in London. The sun has only just begun to come out and it is still fairly dark. Careful in his movements, so as to not wake up his wife who is still sound asleep, he sits up on the side of his bed. He seems to be in his early fifties, hints of aging have only just begun to appear. A wide moustache marks the top of his lips. He must get back to work urgently, he thinks to himself, the analysis of the experiments may be complete, but he must start writing the research paper soon. He rubs his eyes and stretches a bit, since his back is sore from sitting in the study all night. His feet still dangle some centimeters from the floor. He proceeds to stand up, his feet barely touch the ground, and only then does a distant thought dawn on him. He finds himself staring at the floor, quite perplexed, and most definitely stupefied. The feelings inside him are first of curiosity, which subsequently breed concern and the concern, not lo...