Alfred Hitchcock and The Three Investigators

The Mystery of the Stuttering Parrot(By: Robert Arthur)

1964

The Secret of Terror Castle(By: Robert Arthur)

1964

The Mystery of the Whispering Mummy(By: Robert Arthur)

1965

The Mystery of the Green Ghost(By: Robert Arthur)

1965

The Mystery of the Vanishing Treasure(By: Robert Arthur)

1966

The Secret of Skeleton Island(By: Robert Arthur)

1966

The Mystery of the Silver Spider(By: Robert Arthur)

1967

The Mystery of the Fiery Eye(By: Robert Arthur)

1967

The Mystery of the Screaming Clock(By: Robert Arthur)

1968

The Mystery of the Moaning Cave(As: William Arden)

1968

The Mystery of the Talking Skull(By: Robert Arthur)

1969

The Mystery of the Laughing Shadow(As: William Arden)

1969

The Secret of the Crooked Cat(As:William Arden)

1970

The Mystery of the Flaming Footprints(By: M.V. Carey)

1971

The Mystery of the Shrinking House(As: William Arden)

1972

The Mystery of Monster Mountain(By: Robert Arthur,M.V. Carey)

1973

The Secret of Phantom Lake(As:William Arden)

1973

The Mystery of the Dead Man's Riddle(As:William Arden)

1974

The Secret of the Haunted Mirror(By: M.V. Carey)

1974

The Mystery of the Invisible Dog(By: Robert Arthur,M.V. Carey)

1975

The Mystery of Death Trap Mine(By: Robert Arthur,M.V. Carey)

1976

The Mystery of the Dancing Devil(As: William Arden)

1976

The Mystery of the Headless Horse(As:William Arden)

1977

The Mystery of the Deadly Double(As:William Arden)

1978

The Mystery of the Magic Circle(By: Robert Arthur,M.V. Carey)

1978

The Secret of Shark Reef(As: William Arden)

1979

The Mystery of the Sinister Scarecrow(By: Robert Arthur,M.V. Carey)

1979

The Mystery of the Scar-Faced Beggar(By: Robert Arthur,M.V. Carey)

1981

Mystery of the Blazing Cliffs(By: Robert Arthur,M.V. Carey)

1981

The Mystery of the Purple Pirate(As:William Arden)

1982

The Mystery of the Wandering Caveman(By: Robert Arthur,M.V. Carey)

1982

The Mystery of the Kidnapped Whale(By: Robert Arthur,Marc Brandel)

1983

The Mystery of the Missing Mermaid(By: Robert Arthur,M.V. Carey)

1983

The Mystery of the Two-Toed Pigeon(By: Robert Arthur,Marc Brandel)

1983

The Mystery Of The Smashing Glass(As:William Arden)

1984

The Mystery of the Trail of Terror(By: Robert Arthur,M.V. Carey)

1984

The Mystery of the Rogues' Reunion(By: Robert Arthur,Marc Brandel)

1985

The Mystery of the Creep-Show Crooks(By: Robert Arthur)

1985

The Mystery of Wreckers' Rock(As:William Arden)

1986

The Mystery of the Cranky Collector(By: M.V. Carey)

1987

Hot Wheels(As: William Arden)

1990