Found 4 books 
[en] Monitoring With Graphite O'Reilly Media
![[Hardy Boys Clue Book 07] • The Pirate Ghost](/cover/79nwE9yJ_uk35NpC/small/[Hardy%20Boys%20Clue%20Book%2007]%20%e2%80%a2%20The%20Pirate%20Ghost.jpg)
[en] [Hardy Boys Clue Book 07] • The Pirate Ghost Aladdin
![[The Hardy Boys Casefiles 36] • Running on Empty](/cover/i7oU1SY2KTg0XZ9F/small/[The%20Hardy%20Boys%20Casefiles%2036]%20%e2%80%a2%20Running%20on%20Empty.jpg)
[en] [The Hardy Boys Casefiles 36] • Running on Empty Pocket Books
![[The Hardy Boys 44] • The Haunted Fort](/cover/AX9HgMQddnhhRWo3/small/[The%20Hardy%20Boys%2044]%20%e2%80%a2%20The%20Haunted%20Fort.jpg)
[en] [The Hardy Boys 44] • The Haunted Fort Grosset & Dunlap, Inc