My teacher is an alien /[cassette tape]

"Susan Simmons can tell that her new substitute teacher is really weird. But she doesn't know how weird until she catches him peeling off his face and realizes "Mr. Smith" is really an alien."@en
"After Susan sees Mr. Smith the substitute teacher peel off his face, she knows he's an alien and only Peter believes her. Together they work to save the class from Mr. Smith's horrible plans."@en
"Susan and Peter are the only ones that can save the sixth grade class from the alien teacher who has other plans for them."@en
"Susan Simmons' new teacher is weird, in fact, he's out of this world - an alien. Even worse, he's come to Earth to kidnap kids and take them into space."@en
"The class discover their teacher is an alien intending to kidnap the brightest children and take them into outer space. Suggested audience: primary, intermediate."
"Contains the complete text of four books, including "My teacher is an alien," in which Susan catches her substitute teacher peeling off his face and realizes he's not human. Also "My teacher fried my brains," "My teacher glows in the dark," and " My teacher flunked the planet." Grades 3-6."
"Susan sees the substitute teacher peel off his face and only Peter believes her. Together they work to save the class from Mr. Smith's alien plans."@en
"Susan Simmons can tell that her new substitute teacher is really weird. But she doesn't know how weird until she catches him peeling off his face and realizes "Mr. Smith" is really an alien."