W: This book about Stonehenge.It reminds me of another book I once read about mysterious objects and places.
M: It sounds interesting.What sort of things do you mean?
W: I don't remember the name of the writer, but he found some quartz beads in Peru that had tiny holes drilled in them.
M: What's strange about that?
W: They've only just developed a commercial drill that could make such holes.
M: Do you rember any other examples?
W: Yes, there's an iron tower in India.It's at least 1,500 years old, but it never rusts.
M: Wait a minute! I remember reading about lots of lines on the ground dating from about A.D.500.It was somewhere in Peru again, I think.
W: I don't see anything strange about that!M: I haven't finished.You can only see what the lines represent from high in the air.
W: And there were no aeroplanes in those days -- or were there?
M: Oh, stop it.Of course, there weren't!W: I think it's the same book.It's got a lot of photos in it of cave drawings showing people who look like astronautes.
M: And why do you think they look like astronautes?
W: Because they have helmets and clothes that look like modern spacesuits.
