The conductor had ceased expostulating, for he saw that the hand which guided the horses was firm and capable. But from time to time the colonel thrust his head through the window to look for his men.

Half-way down the slope Montbar had his horses under control, without, however, seeming to check their course. Then he began to sing, at the top of his voice, the “Réveil du Peuple,” the song of the royalists, just as the “Marseillaise” was the song of the Jacobins.

“What’s that rogue about?” cried Roland, putting his head through the window. “Tell him to hold his tongue, conductor, or I’ll put a ball through his loins.”

Perhaps the conductor might have repeated Roland’s threat to Montbar, but he suddenly saw a black line blocking the road. “Halt, conductor!” thundered a voice the next moment.

“Postilion, drive over the bellies of those bandits!” shouted the police agent.

“Drive on yourself!” said Montbar. “Do you suppose I’m going over the stomachs of friends? Who-o-ah!”

The mail coach stopped as if by magic.

“Go on! go on!” cried Roland and the colonel, aware that the escort was too far behind to help them.

“Ha! You villain of a postilion,” cried the police agent, springing out of the coupé, and pointing his pistol at Montbar, “you shall pay for this.”

The words were scarcely uttered when Montbar, forestalling him, fired, and the agent rolled, mortally wounded, under the wheels of the coach. His fingers, convulsed by death, touched the trigger and the pistol went off, but the ball touched no one.