A few weeks later, while Monsieur Hérault was still the popular subject of ridicule throughout Paris, business took Poulailler on the road to Lille and Cambrai. The only inside passenger in the coach besides himself, was the venerable Dean Potter of Brussels. They fell into talk on the one interesting subject of the time--not the weather, but Poulailler. "It's a disgrace, sir, to the police," said the Dean, "that such a miscreant is still at large. I shall be returning to Paris, by this road, in ten days' time, and I shall call on Monsieur Hérault, to suggest a plan of my own for catching the scoundrel." "May I ask what it is?" said Poulailler. "Excuse me," replied the Dean; "you are a stranger, sir,--and, moreover, I wish to keep the merit of suggesting the plan to myself." "Do you think the lieutenant of police will see you?" asked Poulailler; "he is not accessible to strangers, since the miscreant you speak of played him that trick at his own breakfast-table." "He will see Dean Potter of Brussels," was the reply, delivered with the slightest possible tinge of offended dignity. "Oh, unquestionably!" said Poulailler,--"pray pardon me." "Willingly, sir," said the Dean--and the conversation flowed into other channels. Nine days later the wounded pride of Monsieur Hérault was soothed by a very remarkable letter. It was signed by one of Poulailler's band, who offered himself as King's evidence, in the hope of obtaining a pardon. The letter stated that the venerable Dean Potter had been waylaid and murdered by Poulailler, and that the robber, with his customary audacity, was about to re-enter Paris by the Lisle coach, the next day, disguised in the Dean's own clothes, and furnished with the Dean's own papers. Monsieur Hérault took his precautions without losing a moment. Picked men were stationed, with their orders, at the barrier through which the coach must pass to enter Paris; while the lieutenant of police waited at his office, in the company of two French gentlemen who could speak to the Dean's identity, in the event of Poulailler's impudently persisting in the assumption of his victim's name.