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.

Rick is a rock. For as long as he can remember, he's lived on the Nature Finds shelf in Room 214 alongside an acorn, some moss, and a piece of bark. One day, the teacher shows the class what rocks do outdoors, and Rick is captivated. Now Rick's determined to get outside. But when Rick does make his way into the great outdoors, he finds it's not quite what he imagined--and that sometimes the greatest adventure of all is being a friend.