As George spoke, he put his head out of the window, and saw that the passage would not be free for several minutes. Three or four pedestrians, tired of waiting, had turned to retrace their steps; and among them Caumont noticed a man wearing a broad-brimmed hat, pulled down over his eyes, and a full black beard concealing the lower part of his face. At a distance of ten paces behind him came two unprepossessing individuals, who seemed anxious not to lose sight of this bearded individual. Caumont rather lightly concluded that they were detectives watching the fellow, but as he had no personal interest in the matter he again ensconced himself in his corner and said to his friend: "Have a little patience. We shall soon move on." As he spoke, he turned, and failed to see that the bearded man rested his hand for an instant on the door of the vehicle, and then without glancing at the occupants, dropped something that fell upon Puymirol's boot. "What is that?" cried Adhémar, "what scoundrel ventures to bombard us in this style?" "I have no idea," replied George, and on hastily turning again, he caught a fresh glimpse of the bearded man, whose back only was now visible, for he had passed them, and was slowing proceeding across the Place du Carrousel. Just then the cab moved on, and in an instant the pedestrians were left far behind. "Whatever the article is it must have been thrown in by a man who just passed us," resumed George; "and he must have done so with extraordinary swiftness and dexterity, for his movement escaped my notice entirely." Meanwhile Puymirol had picked up from the bottom of the cab a handsome pocket-book, which, with his friend's assent, he now began to open. "The man who threw that in here," said George, "must be a thief, who in his anxiety to escape arrest, and to get rid of the stolen article, dropped it into our cab. When pickpockets find themselves in danger of capture, they very often resort to that device." "Well," rejoined Puymirol, "at least there isn't the slightest vestige of a bank-note inside, as you can see for yourself. Nor are there any visiting-cards, nothing but papers, and not many of them. In this compartment there are some lottery tickets, just look: The Tunisian Lottery, the Amiens Lottery, and the Lottery of the Decorative Art Society. And here on the other side there are some letters." "Letters!" repeated George. "So much the better. We shall perhaps find in them some clue that will enable us to discover the person from whom the pocket-book was stolen." "You don't know whether it was stolen," remarked Adhémar. "Besides, who would think of stealing lottery tickets?" "True, but it perhaps contained money, which the thief extracted before throwing away; besides, a letter is sometimes of great value to its writer."