"Stop, or I fire!" returned Juve.

"Fire then! I, too, shall fire!" And, leaping toward the detective, the outlaw pointed his revolver at him and fired twice.

With a quick movement Juve leaped aside. The bullets must have brushed him, but luckily he was not touched. The plucky detective again flung himself on Loupart, seized him by the collar and tried to throw him down.

"Let me go! I'll do for you——"

For a moment Juve felt the cold muzzle of the weapon on his neck. Then, with a supreme effort, he forced the outlaw's hands down and, aiming his revolver, fired.

"Help! I—I——"

A gush of blood welled up from the ruffian's collar. He turned twice, and then fell heavily on the ground.

In the meantime Fandor was struggling with the two men in the grey masks. Juve was about to go to his assistance, when the crowd now made a rush and the detective became the central point of a furious encounter: blows and kicks rained on him. He succumbed to numbers.

It was now Fandor's turn to help his friend, and he was about to join the fight when he stood rooted to the spot in utter amazement. A little beyond the groups of struggling men he caught sight of an individual standing beside a tripod on which was placed a contrivance he did not at once identify. The man seemed greatly amused, and was watching the scene laughing and showing no desire to intervene.

"Very good! Very good! That will make a splendid film!"