A message! Averil's heart stood suddenly-still. All the evil report that she had heard of this man raised its head like a serpent roused from slumber, a serpent that had hidden in her breast, and a terrible agony of fear took the place of her confidence.

Carlyon waited for her answer without a sign of impatience. Through her mind, as it were on wheels of fire, Steele's passionate words were running: "He lives on treachery. He would betray any one or all of us to death if it were to the interest of the Empire that we should be sacrificed." And again: "I would sooner tread barefoot on a scorpion than get entangled in Carlyon's web."

All this she would once have dismissed as vilest calumny. But Carlyon's abandonment of Derrick, and his subsequent explanation thereof, were terribly overwhelming evidence against him. And now this man, this spy, wanted to use her as an instrument to accomplish some secret end of his.

A matter of life or death, he said. And for which of these did he purpose to use her efforts? Averil sickened at the possibilities the question raised in her mind. And still Carlyon waited for her answer.

"Why do you ask me?" she said at last, in a quivering whisper. "What is the message you want to send?"

"You delivered a message for me only yesterday without a single question," he said.

She wrung her hands together in the darkness. "I know. I know," she said; "but then I did not realize."

"You saved the camp from destruction," he went on. "Will you not do the same to-night?"

"How shall I know?" she sobbed in anguish.

"What have they been telling you?"