53 books • 22 series
Book #1: Bring Down the Night
Book #1: The Swamp Thing
Book #2: The Alien from Outer Space
Book #3: Golden Eagle
Book #4: The Jaguar Paw Puzzle
Book #5: Octopus Island
Book #3: The Vampire Brides
Book #4: The Headless Gargoyle
Book #1: Surf's up
Book #2: The Secret Code
Book #3: Top Dog
Book #4: The Purple Kiss
Book #6: Mystery at Big Horn Ranch