Hatsuho poisoned the bottom of a spoon used for the cheese. By tasting it first and then dipping it back into the cheese, she poisoned the food for others while remaining unaffected herself.

The plot revolves around the wealthy museum owner, , who receives death threats from his three managers. The trio— Moyono Mibu , Seinosuke Nagata , and Tatsurou Seikanji —form a deadly pact to kill Izumi for his inheritance. After Tatsurou kidnaps Conan and Ran, a string of "accidents" and a poisoning lead to the death of the museum curator, Naruya Akaza . Key Details & Solution

, is revealed as the actual culprit behind the museum's deaths. Key Characters & Voice Cast Conan Edogawa: Minami Takayama Ran Mouri: Wakana Yamazaki Kogoro Mouri: Rikiya Koyama Inspector Megure: Hatsuho Toba (Culprit): Yuriko Fuchizaki Jisaburou Izumi (Target): Bin Sasaki Resolution & Deductions The Murder Method:

The real mastermind is revealed to be Hatsuho Toba , who had been posing as Izumi's caregiver.

The prize? A painting by the famous artist Gleans, titled "The Purple Nail," which serves as one of the "Four Masterpieces" related to the Detective Koumi story arc. However, for Kaitou Kid, the theft isn't about greed; it is about the challenge.

Locked-room mysteries are the soul of golden-age detective fiction. Here, the challenge is twofold: How was the room sealed from the inside? And how did a flaming arrow strike a man with surgical precision without setting the entire room ablaze? Conan’s inner monologue as he inspects the ceiling, the floorboards, and the victim’s clothing is a masterclass in noticing the one weird detail —a small, melted piece of metal that doesn’t belong.

The centerpiece of Episode 717 is the titular "Airwalk." When Kaitou Kid makes his appearance, he doesn't simply sneak in through a window. In a moment that baffles the police and thrills the audience, Kid appears to walk on thin air across the chasm separating the mansion from the cliffside.