The Three Investigators Collectors Edition 4 to 6

The Three Investigators by Robert Arthur introduces Jupiter Jones, Pete Crenshaw, and Bob Andrews—three resourceful teenage sleuths who solve baffling mysteries with logic, courage, and teamwork. Originally created as an Alfred Hitchcock-endorsed series, these thrilling adventures blend suspense, clever clues, and eerie settings, making them a favorite among young readers. Available at Best Book Centre.