Ep. 839: The group hears a tengu's voice while hiking and discovers Mayor Shoji Mayama's body in a cave.
Aired on November 12, 2016Filler

During a hiking trip, Kogoro, Conan, and Ran encounter the eerie moaning of a tengu, a legendary dog-like spirit. After spending the night at a mountain guest house, the trio visits a local historic site, specifically a cave associated with the creature. Inside, Conan finds the corpse of Mayor Shoji Mayama, who is wearing a tengu mask and hanging from a shrine. Although Kogoro concludes that the death is a suicide due to the lack of other people in the cave, Conan senses inconsistencies regarding the body and the crime scene that suggest the official explanation may be incorrect.
Episodes
- Ep. 835 · Investigation into Takarada's Death Continues as Mika Becomes Prime Suspect
- Ep. 836 · Conan and friends visit a studio where a girl band drummer is strangled, sparking a murder investigation.
- Ep. 837 · The Unfriendly Girls Band Part 2 Investigation Continues
- Ep. 838 · Sonoko, Ran, and Conan attend the Suzuki Balloon Festival in Ibaraki Prefecture
- Ep. 839 · The group hears a tengu's voice while hiking and discovers Mayor Shoji Mayama's body in a cave.
- Ep. 840 · Junko Hirose arrested for murder in Tonkoro City, but Kogoro proves her alibi from Beika City.
- Ep. 841 · Kogoro and Conan investigate a rainy car accident involving a deceased former coworker.
- Ep. 842 · Kei Nakanishi reflects on Remi Kirisaki's suicide six months prior while touring with Conan and Kogoro
- Ep. 843 · The Detective Boys in a Grove Part 1