"Well, you have me," he said. "What are you going to do with me?"
The two men laughed.
"I guess you won't be as much surprised at what we are going to do as the manner in which we are going to do it," replied Duval, with an evil leer.
"How?" asked his lieutenant. "Water?"
"Right," was his chief's reply. He turned to Hal. "This house," he explained, "is on the very bank of the River Seine. Perhaps you have skirmished about in the rear?"
Hal shook his head negatively.
"Well, such is the case. In the cellar is a neat little room of four solid walls—no windows. There is a slight crack at the bottom, and through this, by a contrivance of my own, I can let in the waters of the river. The door is solid, and, once locked in, you cannot get out. I believe that this is a fitting death for a police spy. What do you think?"
Again Hal shrugged his shoulders.
"One way is as good as another," he said briefly. Duval turned to his companion with a laugh.
"Quite a brave man we have here, eh?"