Tommy hated Earth, knowing his mother might go home to Mars without him. Worse, would a robot secretly take her place?... Tommy Benton, on his first visit to Earth, found the long-anticipated wonders of twenty-first-century New York thrilling the first week, boring and unhappy the second week, and at the end of the third he was definitely ready to go home. The never-ending racket of traffic was torture to his abnormally acute ears. Increased atmospheric pressure did funny things to his chest and