"No, sir," Dowland said. "I think that I have described exactly what I did hear and see."

"And you feel the Trelawneys established contact with some previous Earth period—not necessarily the Pleistocene?"

"Yes, I do."

"And you report having seen a spaceship in that prehistorical period...."

Dowland shook his head. "No, sir. At the moment I was observing it, I thought it was that. What I reported was having seen something that looked like a spaceship."

"What do you think it was?"

"A timeship—if there is such a word."

"There is such a word," Camhorn interrupted lazily. "I'm curious to hear, lieutenant, what brought you to that conclusion."

"It's a guess, sir. But the thing has to fit together somehow. A timeship would make it fit."

"In what way?"