of hydrogen, helium, and inert gases from the Solar wind. Things like that tell us that those rocks haven't been lying there very long; and since they got where they were by being thrown out of the craters, the craters haven't been there very long, either." Steinfield made an exaggerated empty-handed gesture. "The rest you know. People like Kronski have done all the figuring and put them at around fifty thousand years old—yesterday!" He waited for a few seconds. "There must be a Lunarian connection somewhere. The number sounds like too much of a coincidence to me."
Hunt frowned for a while and studied the detail of the Farside hemisphere of the model. "And yet, you must have known about all this for years," he said, looking up. "Why the devil did you wait for us to call you?"
Steinfield showed his hands again and held the pose for a second or two. "Well, you UNSA people are pretty smart cookies. I figured you already knew about all this."
"We should have picked it up sooner, I admit," Hunt agreed. "But we've been rather busy."
"Guess so," Steinfield murmured. "Anyhow, there's even more to it. I've told you all the consistent things. Now I'll tell you some of the funny things. . . ." He broke off as if just struck by a new thought. "I'll tell you about the funny things in a second. How about a cup of coffee?"
"Great."
Steinfield lit a Bunsen burner, filled a large laboratory beaker from the nearest tap, and positioned it on a tripod over the flame. Then he