Now you see it--
Subtitle: the incredible illusions of Ethan Flask and Professor von Offel
By: by Anne Capeci ; creative development by Gordon Korman.
Contributors: Korman, Gordon.
Series: Mad science
Publisher: Scholastic
Published: 2002
Place of publication: New York
Language: eng
Subjects: Schools -- Fiction; Teachers -- Fiction; Optical illusions -- Fiction
Genres: Fiction.
Description: Ethan Flask is teaching his sixth-grade science class about optical illusions, and other people in the school are seeing things.