62 books • 18 series
Mystery of the Dead Man's Ridd (The Three Investigators, #22) (The Three Investigators, #22) (The Three Investigators, #22)
Hot Wheels (Three Investigators Crimebusters (Library), #1) (Three Investigators Crimebusters (Paperback), #1) (Crimebusters)
Mystery of the Smashing Glass (The Three Investigators, #38) (Alfred Hitchcock Books, #38) (Alfred Hitchcock Books, #38) (Alfred Hitchcock Books, #38)
The Three Investigators in the Mystery of the Laughing Shadow (The Three Investigators, #12)
Alfred Hitchcock and the Three Investigators in the Mystery of the Dancing Devil (The Three Investigators, #25)
The Mystery of the Laughing Shadowe Mystery of the Dancing Devil (The Three Investigators, #25)
Mystery of the Purple Pirate (Alfred Hitchcock Books, #33) (The Three Investigators, #33)