Book 1
Slappy Birthday to You (Goosebumps SlappyWorld #1)
R. L. Stine
Book 4
Please Do Not Feed the Weirdo (Goosebumps SlappyWorld #4)
R. L. Stine
Book 5
Escape From Shudder Mansion (Goosebumps SlappyWorld #5)
R. L. Stine
Book 6
The Ghost of Slappy (Goosebumps SlappyWorld #6)
R. L. Stine
Book 7
It's Alive! It's Alive! (Goosebumps SlappyWorld #7)
R. L. Stine
Book 8
The Dummy Meets the Mummy! (Goosebumps SlappyWorld #8)
R. L. Stine
Book 9
Revenge of the Invisible Boy (Goosebumps SlappyWorld #9)
R. L. Stine
Book 10
Diary of a Dummy (Goosebumps SlappyWorld #10)
R. L. Stine
Book 11
They Call Me the Night Howler! (Goosebumps SlappyWorld #11)
R. L. Stine
Book 12
My Friend Slappy (Goosebumps SlappyWorld #12)
R. L. Stine