The medium were comparing is a radio play and a book.The book is written by the original author Steve Bradbury.The radio play was written by Michael McDonough .The radio play is like an improved book read to you, but with different voices for each character .The book is what you read . So there are differences in each book keep reading to find out. The plots are being pretty much the same with a little different.The setting for both is a small civilization on Mars.Rising action, the rising action for both when they landed on Mars and Harry started noticing stuff. He noticed that the flowers and cows and food was changing.Harry and the kids eyes started changing colors.The big turning point of the story was , they receive a disappointing call
