Stai Guardando Detectiveconan Ep 136-139 Ita -

Dr. Agasa takes the Junior Detective League camping, but they get lost and seek shelter in a massive, eerie blue castle.

If you are following the Japanese numbering (which some Italian streaming platforms or fan-lists use), cover a fan-favorite "survival" mystery. Stai guardando DetectiveConan Ep 136-139 ITA

The arc concludes with Conan, Ai, and Professor Agasa attempting to recover data on the APTX 4869 from a floppy disk, only for the "Night Baron" virus to delete everything before they can read it. Case 2: The Old Blue Castle Investigation The arc concludes with Conan, Ai, and Professor

Conan disappears early in the episode after finding a secret passage, leaving Ai Haibara and the other children to solve the mystery of the castle's hidden treasure and a series of disappearances. This is one of the most important arcs

In the international (Italian) numbering, often refer to the massive 2-hour special originally aired in Japan as Episode 129. This is one of the most important arcs in the entire series because it introduces Ai Haibara .