Bücher von Nourse Alan E. Nourse

It was nearly winter when the ship arrived. Pete Farnam never knew if the timing had been planned that way or not. It might have been coincidence that it came just when the colony was predicting its first real bumper crop of all time. When it was all over, Pete and Mario and the rest tried to figure it out, but none of them ever knew for sure just what had happened back on Earth, or when it had actually happened. There was too little information to go on, and practically none that they could true.

Four men set out to prove their mettle by crossing the bright side of Mercury when it is closest to the sun. A feat which no one has ever done and survived. The odds are against them and they will need all of their expertise and courage if they are to succeed and even that might not be enough.