Robert Arthur
Robert Arthur Jr. was an American writer and editor of crime fiction and speculative fiction known for his work with The Mysterious Traveler radio series and for writing The Three Investigators, a series of young adult novels.
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books
Alfred Hitchcock and the three investigators in The mystery of the fiery eye
1978
ISBN 9780394837703
The secret of Skeleton Island
1999
ISBN 9780394864068
Die drei ??? und der Super-Papagei
1981
ISBN 9783440047323
Alfred Hitchcock and the Three Investigators in the Secret of Skeleton Island
1978
ISBN 9780006903413
I delitti della camera chiusa
2007
ISBN 9788881543007
The Mystery of the Green Ghost
1965
ISBN 9780394812281
The Three Investigators
1992
ISBN 9780679832607
Alfred Hitchcock and the Three Investigators in The Secret of Terror Castle
1967
ISBN 9780590303255
Alfred Hitchcock and the Three Investigators in the secret of Skelton Island
1970
ISBN 9780006919186
The Three Investigators in the mystery of the moaning cave
1972
ISBN 9780006924425
The Mystery of the Fiery Eye
1999
ISBN 9780613161619
Skeleton Island
1992
ISBN 9780006926689
Alfred Hitchcock and Three Investigators in the Secret of Terror Castle
1972
ISBN 9780001600010
The three investigators in The mystery of the fiery eye
1984
ISBN 9780394864075
The fiery eye
1992
ISBN 9780006904410
The Mystery of the Screaming Clock
1999
ISBN 9780613220590