In reading order
Haunted Kids
Allan Zullo
The Scaredy Cats
Allan Zullo
The Home Wrecker
Allan Zullo
The Thing in the Attic
Allan Zullo
The Baby-Sitting Ghost
Allan Zullo
The Headless Trainman
Allan Zullo
The Secret of Room 333
Allan Zullo
The Warning
Allan Zullo
The Devil's Garden
Allan Zullo
The Ghost of Slow Sam
Allan Zullo
The Glowing Ball of Death
Allan Zullo
Grave Consequences
Allan Zullo