In reading order
Slappy Birthday to You
R.L. Stine
Attack of the Jack
R.L. Stine
I Am Slappy's Evil Twin
R.L. Stine
Please Do Not Feed the Weirdo
R.L. Stine
Escape from Shudder Mansion
R.L. Stine
The Ghost of Slappy
R.L. Stine
It's Alive! It's Alive!
R.L. Stine
The Dummy Meets the Mummy!
R.L. Stine
Revenge of the Invisible Boy
R.L. Stine
Diary of a Dummy
R.L. Stine
They Call Me the Night Howler!
R.L. Stine
My Friend Slappy
R.L. Stine
Monster Blood Is Back
R.L. Stine
Fifth-Grade Zombies
R.L. Stine
Judy and the Beast
R.L. Stine
Slappy in Dreamland
R.L. Stine
Haunting with the Stars
R.L. Stine
Night of the Squawker (Goosebumps SlappyWorld #18)
R.L. Stine
Friiight Night
R.L. Stine
Authors
Narrators
Aaron Landon Austin Rising Barrett Leddy Cassandra Morris Christian Barillas Emily Lawrence Jay Aaseng Joe Fria Lucien Dodge Mark Sanderlin Mark Turetsky Matt Braver Maxwell Glick Michael Gallagher P.J. Ochlan Parry Shen Pierce Cravens Rachel Jacobs Ramon deOcampo Stephanie Drake Tara Sands Tarah Consoli Thom Rivera