"But----"

"I must! I must!" she replied. Her distress was painful.

Her brother frowned. The Bat eyed her, in doubt and perplexity. But Roger spoke. "Let her go," he said in a low voice. "I understand. She is right."

And though no one else understood, the Bat let her pass the head of the file of horsemen and ride alone up the way that led to the castle. The men, with wondering faces, watched her figure and her horse until the turn in the road hid her, and watched again until she was seen crossing the bridge which spanned the road. Immediately she vanished without let or hindrance.

"The gates are open," some one muttered in a tone of relief. And the men's faces lost their gravity. They fell into postures of ease, and began to talk and exchange jests. Some gazed up at the castle windows or at that rampart walk, high above the town, which had been the Captain of Vlaye's favourite lounge of evenings. Only the foremost ranks, who could see the road before them and the bridge that crossed it, continued to look to the front with curiosity.

It was one of these whose exclamation presently stilled all tongues and recalled all thoughts to the work in hand. An instant later the Bat's face turned a dull red colour. Roger laughed nervously. Some of the men swayed, and seemed inclined to cheer; others raised their hands, but thought better of it. The rear ranks rose in their stirrups. A moment and all could see des Ageaux coming down the road on foot. The Bat and the two Villeneuves went forward to meet him.

He nodded to them without speaking. Then, "Why are you waiting?" he asked in a low voice. "Is it not all arranged?"

"But mademoiselle," the Bat answered, staring. "Have you not seen her?"

"No."

"But I thought--she asked us to wait."