Sixth grade is just out of this world Susan Simmons can tell that her new substitute Teacher is really weird.
Only they can get rid of their extraterrestrial visito.
Smith\'s horrible plans for their classmates, they know they have to act fast.
When Peter and Susan discover Mr.
Smith`` is really an Alien At first no one will believe her except Peter Thompson, the class brain.
But she doesn\'t know how weird until she catches him peeling off his face -- and realizes that ``Mr.
Sixth grade is just out of this world Susan Simmons can tell that her new substitute Teacher is really weird