You had better listen to the old man as long as he continues to grumble on, the more so as you will detect in the rancor and bitterness of his remarks all the vexation of a disappointed speculator.

He will confess to you besides that he subsists entirely on the bounty of the lad, whom he had stigmatized as an ungrateful villain.

Of course, the Duke will have to leave behind him some testimonial of his pleasure, and you will hurry off to the Rue d'Arras.

The proprietor of the house will tell you that some four years ago he got rid of his musician, the only one of his class who had dared to establish himself there, and a small present and a few adroit questions will obtain for you the address of one of the young man's pupils, Madame Grandorge, a widow lady, residing in the Rue St.Louis.
This lady will tell you that she does not know the address of her former master, but that he used to live at 57, Rue de la Harpe.

From the Rue de la Harpe you will be sent to the Rue Jacob, and from thence to the Rue Montmartre, at the corner of the Rue Joquelet." Mascarin paused, drew a long breath, and chuckled inwardly, as though at some excellent joke.
"Be comforted, Catenac," said he.