"One more thing," Blake told him. "These men had to have a track to get Mono 6 into this cave. When it goes out again we'll be on the same track, but it will end in a canyon or deep lake."
"Go on."
"Well! We've got to get started on that trip. After we are out you and I will have to take our chances of stopping the mono."
"And I thought Grudge Harror was a tough baby," O'Toole grinned.
"It isn't a matter of being tough," Blake said. "Can you handle the engine room alone?"
"Handled it for years," O'Toole said coolly. "But I'd like to know where that track ends."
"You will." Blake went toward the door. He gripped O'Toole's shoulder. "You're a good Irishman, O'Toole. Now go out of here and straight to the cab. I don't think they'll dare send one of the other men. If the controls are tied into place, leave them alone. When I signal, set all motors going full speed. Sit tight and keep her flying."
"And the end of the track?" O'Toole asked. "If I don't get shot in the back before I'm half way across the cave, how do I know when to stop?"
Blake chuckled dryly.