For the first time in years Eerie Elementary is planning a science fair, which may not be a good idea in a school which is alive and out to get the students--but when Sam and his friends find a book of experiments that contains all of Orson Eerie's notes, it may turn out to be the key they need to finally understand the mad scientist.
A bad feeling -- Earthquake! -- Snatched! -- A strange discovery -- Get that book! -- The mystery of the book -- Sam's big choice -- The science fair begins -- Sam's experiment -- Uh-oh -- The science fair disaster -- Volcano! -- Firefighters -- The face of Orson Eerie -- Mystery solved.