Blake grinned.
"Don't worry," he said. "I'll take good care of him."
Mono 6 started to glide smoothly back out of the cave. Somewhere out of sight behind the flyer, a huge door opened in the side of the mountain and screeched its way into the concealed slit above. The train gathered speed swiftly, and the moon suddenly appeared from nowhere. Blake waited, made sure there were no guards remaining on board. Then he ran swiftly toward the group around Ferrell. He ripped the mask off as he moved, and Dauna, her eyes glued to his face, gasped in happy surprise.
"Jeff," she ran toward him, "Oh! Jeff, I'm so glad."
He pressed his lips to hers quickly, turned away without a word and faced Walter Ferrell. Ferrell's face was expressionless, frightened.
"Jeff Blake," he said. "How did you make it?"
"There isn't time to talk now," Blake answered quickly. "O'Toole and I overcame Harror. We managed to get them to start Mono 6 out of the cave. O'Toole is in the cab now. In a few minutes we'll be free. Before they wake up to the trick we played on them we'll be five hundred miles away."
Ferrell's face relaxed. Although Blake watched him closely, the man showed no sign of alarm.
"Good work, boy." His hand gripped Blake's shoulder. "I don't know how you did it, but there'll be a big reward for you when we reach South Station."