And Lupin was telling them to fly. Pursued and hunted as he was, he voluntarily gave himself up to warn them of their danger. And the danger was immediate. Seven minutes more, six minutes more—and the house would be blown up.

With great simplicity, Mazeroux went on his knees, made the sign of the cross, and said his prayers in a low voice. The action was so impressive that the secretary general and the chief detective made a movement as though to go toward the Prefect of Police.

M. Desmalions turned away his head and continued his walk up and down the room. But his anguish increased; and the words which he had heard over the telephone rang in his ears; and all Perenna's authority, his ardent entreaties, his frenzied conviction—all this upset him. He had seen Perenna at work. He felt it borne in upon him that he had no right, in the present circumstances, to neglect the man's warning.

"Let's go," he said.

The words were spoken in the calmest manner; and it really seemed as if those who heard them regarded them merely as the sensible conclusion of a very ordinary state of affairs. They went away without hurry or disorder, not as fugitives, but as men deliberately obeying the dictates of prudence.

They stood back at the door to let the Prefect go first.

"No," he said, "go on; I'll follow you."

He was the last out, leaving the electric light full on.

In the hall he asked the chief detective to blow his whistle. When all the plain-clothesmen had assembled, he sent them out of the house together with the porter, and shut the door behind him. Then, calling the detectives who were watching the boulevard, he said:

"Let everybody stand a good distance away; push the crowd as far back as you can; and be quick about it. We shall enter the house again in half an hour."