"Yes, but please lend me the piece in your possession."

"What if I do?"

"If you do, I promise to let you have the whole scarf complete."

"Very well, that's understood."

Ganimard followed the examining-magistrate to his room and came out with the piece of silk:

"Hang it all!" he growled. "Yes, I will go and fetch the proof and I shall have it too ... always presuming that Master Lupin has the courage to keep the appointment."

In point of fact, he did not doubt for a moment that Master Lupin would have this courage, and that was just what exasperated him. Why had Lupin insisted on this meeting? What was his object, in the circumstances?

Anxious, furious and full of hatred, he resolved to take every precaution necessary not only to prevent his falling into a trap himself, but to make his enemy fall into one, now that the opportunity offered. And, on the next day, which was the 29th of December, the date fixed by Lupin, after spending the night in studying the old manor-house in the Rue de Surène and convincing himself that there was no other outlet than the front door, he warned his men that he was going on a dangerous expedition and arrived with them on the field of battle.

He posted them in a café and gave them formal instructions: if he showed himself at one of the third-floor windows, or if he failed to return within an hour, the detectives were to enter the house and arrest any one who tried to leave it.

The chief-inspector made sure that his revolver was in working order and that he could take it from his pocket easily. Then he went upstairs.