Van Tromp said, "I'll amend that.  It would be better to say that I think he's a scout for an expeditionary force, reconnoitering us for his Martian masters.  It is even possible that they are in telepathic contact with him at all times, that he doesn't even need to report back.  I don't know - but I do know that, after visiting Mars, I find such ideas much easier to swallow... and I know this: everybody seems to take it for granted that, finding a human being on Mars, we would of course bring him home and that he would be anxious to come home.  Nothing could be further from the truth.  Eh, Sven?"