Ep. 107: Matthew Kohler seeks help to find his missing sister Celia, suspecting murder by Walter Rivers.

Matthew Kohler, an actor from the Masked Yaiba show, asks Richard for assistance in locating his sister Celia, whom he believes was murdered and buried in Walter Rivers' backyard. Walter was Celia's final client before she vanished. Matthew proposes digging up the yard while Walter attends a Saturday hospital appointment, but Richard refuses due to insufficient evidence. The Junior Detective League, having previously visited Walter to retrieve their baseball, goes to his house to prevent Matthew from acting alone. They discover Matthew is in police custody after robbing a jewelry store. Conan questions why Matthew left his getaway car visible, failed to cover his face, and notes the proximity of a manhole and construction site to Walter's residence.
Episodes
- Ep. 103 · Conan exposes Johnny Hijikata's elaborate elevator and room plate tricks to clear Harrisan's name.
- Ep. 104 · Richard investigates a clock-filled mansion with Conan and Rachel, encountering the Nakamura brothers.
- Ep. 105 · Conan reveals clues about the mansion mystery to Kogoro in the second part of the case.
- Ep. 106 · Reynold Yates Wins Award Then Faces Murder Allegations
- Ep. 107 · Matthew Kohler seeks help to find his missing sister Celia, suspecting murder by Walter Rivers.
- Ep. 108 · Conan deduces Walter murdered Celia Kohler and locates her body beneath a flower.
- Ep. 109 · Junior Detectives Solve Murder After Amy Is Hit By Car
- Ep. 110 · Conan and Rachel visit Bludcraven Manor with Richard and uncover secrets linking Morfius Bludcraven to The Goblins
- Ep. 111 · Investigation into the cooking instructor's stabbing continues in this second part of the murder case.