Of late, however, it began to dawn upon Flinder that Deriugin knew more than he was willing to show; in fact, more than he was supposed to know. This, of course, was impossible to ascertain with any definiteness; nevertheless, after carefully observing the nature of some of his experiments not directly connected with his work, the professor began to divine the curious mind, persistent and bold, which was striving to fathom the great mystery. The glitter, which this somewhat round-shouldered man could not always extinguish, and which continued to glow in the depth of his eyes at lectures or during the hours of practice, whenever the subject of the breaking up of the atom came up, filled Flinder with discomfort and alarm.

Perhaps, there was more danger in this young man than in the little old man from Nancy. Something was happening right here, under his very eyes. And the thought of ridding himself of the uncomfortable collaborator began to occupy the professor’s' mind.

Eitel, the professor’s son, who was serving as a volunteer in the cavalry division of the Reichswehr, detested Deriugin with all the passion of his heavy and sad hatred. He had been telling his father, that if he were in his father’s place, he would have sent this “Moscow spy” to all the devils, or, at least, he would keep him from the laboratory at a distance of a cannon shot. Flinder was beginning to agree with his son’s contentions, now. But, after all, one must have some plausible excuse.

And all this is hardly calculated to serve as a cure for depressed spirits, not to mention the fact that the newspapers had been offering food for the most somber reflections every day. Those fellows beyond the Rhine, lost all control over themselves; they permitted themselves to go to the very limit. They continued to slap the back of the vanquished adversary, until it made Flinder clutch his fists and gasp for breath.

“Well, so be it,” he thought. “He laughs best, who laughs last— and this is their own adage. We shall see who will do the laughing. Flinder will give to Germany, that mighty, indomitable power, which he feels will soon flow in powerful torrents into his laboratory. We shall see! Yes, we shall see!”

Flinder pushed his unfinished cigar into the ash-tray with such disgust and anger, that a heap of ashes scattered over the table, and he left the room.

IT was dinner time, a meal which was observed with great precision in his home. At the window, drumming with his fingers on the glass, stood a tall young man in military uniform.