“Yes, monsieur le secrétaire;-général.”

“Did you see a gentleman and a lady go out?”

“Yes.”

“Would you know the man again?”

“Yes.”

“Then don’t lose a moment, chief-inspector. Take six inspectors with you. Go to the Place de Clichy. Make inquiries about a man called Nicole and watch the house. The Nicole man is on his way back there.”

“And if he comes out, monsieur le secrétaire;-général?”

“Arrest him. Here’s a warrant.”

He sat down to his desk and wrote a name on a form:

“Here you are, chief-inspector. I will let the chief-detective know.”