They're research scientists and only believe in real science.
But now Sammy's met someone who is really unreal.
He's hanging out in Sammy's room and eating his cereal at breakfast.
Sammy's got to find a way to get rid of his new 'friend'.
The only problem is that Sammy's new friend is invisible.
Author-R L Stine
Category-Fiction
Series-Goosebumps
Age Group-Primary School
Publisher-Scholastic Inc
Binding-Paperback