The Three Investigators: The Mystery of the Stuttering Parrot

Series Alfred Hitchcock and The Three Investigators
Illustrator unknown
Author Robert Arthur
Year 1971 (first published 1967)
Publisher Armada
ISBN unknown

???
THE THREE INVESTIGATORS
“We Investigate Anything”
Jupiter Jones
Peter Crenshaw
Bob Andrews

When Mr. Silver dies he leaves a real ‘skull-buster’ for the Three Investigators to puzzle out. A valuable masterpiece must be found and the only clues the boys have to work with are seven parrots—who just won’t talk! And Huganay, the international art thief, is hot on the same trail!

The Three Investigators: The Secret of Terror Castle

Series Alfred Hitchcock and The Three Investigators
Illustrator unknown
Author Robert Arthur
Year 1975 (first published 1967)
Publisher Armada
ISBN unknown

???
THE THREE INVESTIGATORS
“We Investigate Anything”
Jupiter Jones
Peter Crenshaw
Bob Andrews

This is The Three Investigators’ business card—and their first assignment: to investigate a haunted house for that Master of Mystery, Alfred Hitchcock. But Terror Castle, looming through the mists of Black Canyon, seems to have more than its fair share of spooks . . .

The Three Investigators: The Mystery of the Talking Skull

Series Alfred Hitchcock and The Three Investigators
Illustrator unknown
Author Robert Arthur
Year 1974 (first published 1969)
Publisher Armada
ISBN unknown

???
THE THREE INVESTIGATORS
“We Investigate Anything”
Jupiter Jones
Peter Crenshaw
Bob Andrews

When Jupiter buys an old trunk, he’s stunned to find a skull inside—especially one that talks! The skull gives him a muddle of information about disappearing victims and hidden wealth. It just doesn’t make sense. And are the clues hidden in the trunk, or in the skull itself? Whether they like it or not, the Three Investigators have another mystery to solve . . .

The Mystery of the Talking Skull available on Amazon