Whilst he was writing the address down Hanaud startled him by breaking unexpectedly into a loud laugh. The curious thing was that there was nothing whatever to account for it. Hanaud was standing by himself between them and the front door. In the courtyard outside there was no one within view. Within the hall Jim and Monsieur Bex were talking very seriously in a low voice. Hanaud was laughing at the empty air and his laughter betokened a very strong sense of relief.

"That I should have lived all these years and never noticed that before," he cried aloud in a sort of amazement that there could be anything capable of notice which he, Hanaud, had not noticed.

"What is it?" asked Jim.

But Hanaud did not answer at all. He dashed back through the hall past Frobisher and his companion, vanished into the treasure-room, closed the door behind him and actually locked it.

Monsieur Bex jerked his chin high in the air.

"He is an eccentric, that one. He would not do for Dijon."

Jim was for defending Hanaud.

"He must act. That is true," he replied. "Whatever he does and however keenly he does it, he sees a row of footlights in front of him."

"There are men like that," Monsieur Bex agreed. Like all Frenchmen, he was easy in his mind if he could place a man in a category.

"But he is doing something which is quite important," Jim continued, swelling a little with pride. He felt that he had been quite fifteen minutes in the bull-ring. "He is searching for something somewhere. I told him about it. He had overlooked it altogether. I reproached him this morning with his reluctance to take suggestions from people only too anxious to help him. But I did him obviously some injustice. He is quite willing."