50 books • 8 series
Henny and Lloyd, Private Eyes (Henny and Lloyd Private Eyes, #1)
Henny and Lloyd's Biggest Cases (Henny and Lloyd Private Eyes, #2)
Oliver Muncing, Exorcist
The Ghosts of Northwood Cemetery
A Summer Murder
To Prove a Villain
A Dying Fall
The Rest is Silence
The Sad Case of Brownie Terwilliger
The Story of the Lone Ranger
Planet Zoron Trilogy (Planet Zoron Trilogy)
The Golden Mushroom Trilogy (The Golden Mushroom Trilogy, #1)
The Goshmen (The Golden Mushroom Trilogy, #3)
Return to Zoron (Planet Zoron Trilogy, #3)
The Revenge of the Critches (The Drummond-Sparks Escapades, #2)
Rescue from Zoron (Mark Foy, #2)
Philip and the Mummy (The Adventures of Philip and Emery, #13)
The Empty Houses
The Adventures of Philip and Emery (The Adventures of Philip and Emery, #2)
Collected Short Stories
Philip and the Dragon (The Adventures of Philip and Emery, #12) (Philip and Emery, #12)
The Mountaintop
Philip Gets Even
Philip And The Case Of Mistaken Identity