That's where you find the dusty old refrigerator.
In the fridge there are two containers- one has purple goop.
It smells just like a.
peanut-butter-and-jelly-sandwich.
The other holds a piece of chocolate cake.
If you eat the purple goop- you start shrinking and if you eat the cake- you grow into a tall giant.
Now you're trying to escape from the police- who are convinced you're a mutant alien.
Author-R L Stine
Category-Fiction
Series-Give Yourself Goosebumps
Age Group-Primary School
Publisher-Scholastic Inc
Binding-Paperback