"What's that?" he exclaimed, with a start. "Who told you? Bérangère, I suppose! She shouldn't have. That's what we must avoid at all costs: indiscretions. One word too much and I am undone; my discovery is stolen. Only think, the first man that comes along . . ."

I had risen from my chair. He pushed me towards his desk:

"Sit down here, Victorien," he said, "and write. You mustn't mind my taking this precaution. It is essential. You must realize what you are pledging yourself to do if you share in my work. Write, Victorien."

"What, uncle?"

"A declaration in which you acknowledge that . . . But I'll dictate it to you. That'll be better."

I interrupted him:

"Uncle, you distrust me."

"I don't distrust you, my boy. I fear an imprudence, an indiscretion. And, generally speaking, I have plenty of reasons for being suspicious."

"What reasons, uncle?"

"Reasons," he replied, in a more serious voice, "which make me think that I am being spied upon and that somebody is trying to discover what my invention is. Yes, somebody came in here, the other night, and rummaged among my papers."