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