The hero takes Millie to the roof and shows her a new rocket ship that he has built , which they will take to Mars .
Space Mouse believes that the whole Earth will be covered with the growth , choking off all forms of life .
The hero takes Millie to the roof and shows her a new rocket ship that Space Mouse has built , which they will take to Mars .
Space Mouse believes that the whole Earth will be covered with the growth , choking off all forms of life .