“Where does Marceau reside?”

“Rue de l’Université, 40, with his sister, Mlle. Dégraviers-Marceau.”

“Will you accompany me?”

“I shall follow you at a distance, to accompany mademoiselle home when you are gone.”

“How will Marceau know that I am the man of whom you spoke to him?”

“You will hand him this tri-colored cockade; that is the sign of identification.”

“And how shall I reward my liberator?”

“By allowing him to save your daughter also.”

“Very well.”

He put on his hat and extinguished the lights, and we descended by the gleam of the moon which penetrated the stair-windows.