It was indeed Joyaut, who had left Mme. Lemoine's for the purpose of looking for a lodging for Georges where he would be less at the mercy of chance than in the fruitseller's attic. Leridant told him that the house of a perfumer named Caron, in the Rue Four-Saint-Germain, was the safest retreat in Paris. For some years Caron, a militant royalist, had sheltered distressed Chouans, in the face of the police. He had hidden Hyde de Neuville for several weeks; his house was well provided with secret places, and for extreme cases he had made a place in his sign-post overhanging the street, where a man could lie _perdu_ at ease, while the house was being searched. Leridant had obtained Caron's consent, and it was agreed that Leridant should come in a cab at seven o'clock the next evening to take Georges from Sainte-Genevieve to the Rue du Four. When he had seen the termination of the interview of which his detective's instinct showed him the importance, Petit, who had remained at a distance, followed Joyaut, and did not lose sight of him till he arrived at the Place Maubert. Suspecting that Georges was in the neighbourhood he posted policemen at the Place du Pantheon, and at the narrow streets leading to it; then he returned to watch Leridant, who lodged with a young man called Goujon, in the cul-de-sac of the Corderie, behind the old Jacobins Club. The next day, March 9th, Petit learned through his spies that Goujon had hired out a cab, No. 53, for the entire day. He hastened to the Prefecture and informed his colleague, Destavigny, who, with a party of inspectors took up his position on the Place Maubert. If, as Petit supposed, Georges was hidden near there, if the cab was intended for him, it would be obliged to cross the place where the principal streets of the quarter converged. The order was given to let it pass if it contained only one person, but to follow it with most extreme care.