Theres always tension when Conan teams up with Harley Hartwell, the other greatest teen detective in Japan--and the only one whos still a teen. But when the duo investigates a murder at a mansion, will Conan interfere with Harleys detective work? Older teens. nTheres always tension when Conan teams up with Harley Hartwell, the other greatest teen detective in Japan...and the only one whos still a teen But when the duo investigates a murder at a mansion, will Conans shrunken state interfere with Harleys detective work? And how many balconies does one mansion need, anyway? Then Conan investigates some shady doings on board an overnight passenger train. He thinks hes on top of the case...until his mystery-loving parents show up to throw everything off track