However, the discovery of the body in the pantry restored the comnussary to a sense of his responsibility. He issued orders, had the house cleared and placed policemen at the gate to prevent any one from passing in or out. Then, without further delay, he examined the spot and began his inquiry. Vaucheray gave his name; Gilbert refused to give his, on the plea that he would only speak in the presence of a lawyer. But, when he was accused of the murder, he informed against Vaucheray, who defended himself by denouncing the other; and the two of them vociferated at the same time, with the evident wish to monopolize the commissary's attention. When the commissary turned to Lupin, to request his evidence, he perceived that the stranger was no longer there.

Without the least suspicion, he said to one of the policemen:

"Go and tell that gentleman that I should like to ask him a few questions."

They looked about for the gentleman. Some one had seen him standing on the steps, lighting a cigarette. The next news was that he had given cigarettes to a group of soldiers and strolled toward the lake, saying that they were to call him if he was wanted.

They called him. No one replied.

But a soldier came running up. The gentleman had just got into a boat and was rowing away for all he was worth. The commissary looked at Gilbert and realized that he had been tricked:

"Stop him!" he shouted. Fire on him! He's an accomplice!... "

He himself rushed out, followed by two policemen, while the others remained with the prisoners. On reaching the bank, he saw the gentleman, a hundred yards away, taking off his hat to him in the dusk.

One of the policemen discharged his revolver, without thinking.

The wind carried the sound of words across the water. The gentleman was singing as he rowed:

"Go, little bark,

Float in the dark... "

But the commissary saw a skiff fastened to the landing-stage of the adjoining property. He scrambled over the hedge separating the two gardens and, after ordering the soldiers to watch the banks of the lake and to seize the fugitlve if he tried to put ashore, the commissary and two of his men pulled off in pursuit of Lupin.

It was not a difficult matter, for they were able to follow his movements by the intermittent light of the moon and to see that he was trying to cross the lakes while bearing toward the right - that is to say, toward the village of Saint-Gratien. Moreover, the commissary soon perceived that, with the aid of his men and thanks perhaps to the comparative lightness of his craft, he was rapidly gaining on the other. In ten minutes he had decreased the interval between them by one half.

"That's it!" he cried. "We shan't even need the soldiers to keep him from landing. I very much want to make the fellow's acquaintance. He's a cool hand and no mistake!"

The funny thing was that the distance was now diminishing at an abnormal rate, as though the fugitive had lost heart at realizing the futility of the struggle. The policemen redoubled their efforts. The boat shot across the water with the swiftness of a swallow. Another hundred yards at most and they would reach the man.