"I must, Chief."

"You silly ass!" growled Don Luis. "How is it possible to be such an ass!
It's enough to disgust one with honesty. What am I to do, then?"

"Discover the culprit, Chief."

"What! … What are you talking about?"

Mazeroux, in his turn, took him by the arm and, clutching him with a sort of despair, said, in a voice choked with tears:

"Discover the culprit, Chief. If not, you're done for … that's certain … the Prefect told me so. … The police want a culprit … they want him this evening…. One has got to be found…. It's up to you to find him."

"What you have, Alexandre, is a merry wit."

"It's child's play for you, Chief. You have only to set your mind to it."

"But there's not the least clue, you ass!"

"You'll find one … you must … I entreat you, hand them over somebody…. It would be more than I could bear if you were arrested. You, the chief, accused of murder! No, no…. I entreat you, discover the criminal and hand him over…. You have the whole day to do it in…and Lupin has done greater things than that!"