Buy One or All Alfred Hitchcock and the Three Investigators in the Mystery of the Green Ghost by Robert Arthur. New York. Scholastic. 1965. Paperback. Good. Edgewear. Alfred Hitchcock Mystery Series Vol. 4. 184 pages. Alfred Hitchcock and the Three Investigators in the Secret of Skeleton Island by Robert Arthur. New York. Random House. 1978. Third Printing. Softcover. Good. Edgewear. The Three Investigators, Jupe, Pete, and Bob, are assisted by a Greek youth as they search for clues to a mysterious thief on Skeleton Island, an island once inhabited by pirates. Alfred Hitchcock and the Three Investigators Series Vol. 6. 152 pages. Alfred Hitchcock and the Three Investigators in the Mystery of the Nervous Lion by Nick West. New York. Random House. 1979. First Printing. Softcover. Good. Edgewear. Includes quiz insert with bookmark in front. Hired to discover why a wild-animal farm's tame lion has become unpredictably nervous, three young detectives begin an investigation that uncovers a smuggling operation. Alfred Hitchcock and the Three Investigators Series Vol. 16. 143 pages. Alfred Hitchcock and the Three Investigators in the Mystery of the Sinister Scarecrow by M. V. Carey. New York. Random House. 1979. Third Printing. Softcover. Good. Edgewear. The theft of some mutant army ants by a scarecrow leads the Three Investigators to the solution of two daring crimes in the art world. Alfred Hitchcock and the Three Investigators Series Vol. 29. 151 pages. Alfred Hitchcock and Three Investigators in the Mystery of the Singing Serpent by M. V. Carey. New York. Random House. 1981. First Paperback Edition. Softcover. Good. Edgewear, crease in front cover. Book mark is missing from back. Alfred Hitchcock Mystery Series. Vol. 17. 146 pages. Alfred Hitchcock and Three Investigators in the Mystery of the Silver Spider by Robert Arthur. New York. Random House. 1978. Fifth Printing. Softcover. Good. Wear at edges. Three Investigators Mystery Series Vol. 8. 184 pages.