Father Absinthe’s physiognomy expressed the strange and comical perplexity of a man who is so thoroughly mystified that he knows not whether to laugh, or to be angry. After reflecting a little, he decided to adopt the latter course. “You are rather too young to impose upon an old fellow like me,” he remarked. “I don’t like boasters—”

“One moment!” interrupted Lecoq; “allow me to explain. You have certainly heard of a terrible battle which resulted in one of the greatest defeats that ever happened to France—the battle of Waterloo?”

“I don’t see the connection—”

“Answer, if you please.”

“Yes—then! I have heard of it!”

“Very well; you must know then that for some time victory seemed likely to rest with the banners of France. The English began to fall back, and the emperor had already exclaimed: ‘We have them!’ when suddenly on the right, a little in the rear, a large body of troops was seen advancing. It was the Prussian army. The battle of Waterloo was lost.”

In all his life, worthy Father Absinthe had never made such a strenuous effort to understand anything. In this case his perseverance was not wholly useless, for, springing from his stool, and probably in much the same tone that Archimedes cried “Eureka!” he exclaimed, “I understand. The man’s words were only an allusion.”

“It is as you have said,” remarked Lecoq, approvingly. “But I had not finished. If the emperor was thrown into consternation by the appearance of the Prussians, it was because he was momentarily expecting the arrival of one of his own generals from the same direction—Grouchy—with thirty-five thousand men. So if this man’s allusion was exact and complete, he was not expecting an enemy, but a friend. Now draw your own conclusions.”

Father Absinthe was amazed but convinced: and his eyes, heavy with sleep a few moments before, now opened to their widest extent. “Good heavens!” he murmured, “if you put it in that way! But I forget; you must have seen something as you were looking through the shutters.”

The young man shook his head. “Upon my honor,” he declared, “I saw nothing save the struggle between the murderer and the poor devil dressed as a soldier. It was that sentence alone that aroused my attention.”