The Old Blue Castle Investigation Case

Chronology
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Episode 136-137 (Int. Episode {{{int-episode}}})
Information
Title:	The Old Blue Castle Investigation Case
Original airdate:	February 22, 1999 (Part 1) March 1, 1999 (Part 2) February 13, 2010 (Part 1, Remastered version) February 20, 2010 (Part 2, Remastered version)
Season:	6
Case
Cast:	Conan Edogawa Ai Haibara Dr. Agasa
Case solved by:	Ai Haibara

Gadgets introduced

Wristwatch Flashlight
	Agasa added the flashlight function to Conan's watch.

Characters

Characters
Conan Edogawa Ai Haibara Ayumi Yoshida Mitsuhiko Tsuburaya Genta Kojima Dr. Agasa

Plot

Part 1

The Detective Boys are on a camping trip but Professor Agasa forgot the tent. They then wander to a castle owned by an old mistress and learn that there's a secret treasure in the castle. Conan finds a clue to the treasure and enters a secret passage but is attacked by an unknown assailant. Agasa and Ai realize that something has happened to Conan. Agasa is about to phone the police to investigate but upon seeing a secret agent, is knocked out by the same culprit.

People

Katsuo Tabata
	41 years old Mamiya family gardener

Mitsuru Mamiya
	49 years old Husband of the eldest Mamiya daughter (Married into the family)

Takahito Mamiya
	25 years old Son of the eldest Mamiya daughter

Masuyo Mamiya
	83 years old Head of the Mamiya family

Remastered version

A remastered version of both episodes aired on February 13th and 20th, 2010.

See also

• Season 6