Inspector Megure asked a question he still couldn't figure out: "How did she manage to carry that poisonous ice around so freely?"

It was a sunny day today, and although the temperature wasn't high, it was still quite hot in the crowded venue. That's why they were selling drinks there.

“I just went out and looked around,” Shinichi said, pulling a wallet from his pocket. “I found this wallet in the trash can in front of the restroom. If you put ice in it and then add a small piece of dry ice, the ice will stay frozen for a long time.”

Kou Shang Mai lowered her head and said with a smile, "As expected of Shinichi Kudo, but you should know that both Mr. Urata and I ordered iced coffee. Moreover, I gave all the drinks to Mitani to distribute to everyone. How was I supposed to know which drink he wanted?"

That makes sense, but Shinichi disagrees. He says, "Because you poisoned both of your drinks."

These words sent shockwaves through everyone's hearts. The news was too shocking; to kill one person, one was even willing to put oneself in the same dangerous situation.

However, there are also doubts. Hong Shang Mai also finished her drink. Even if she drank the drink before it melted, the remaining ice would either be detected or poured out, which would make her even more suspicious.

Shinichi had a third option, which he explained to everyone: "What if Miss Kougami puts the ice cube in her mouth like Mr. Urata?"

Another huge wave sent chills down everyone's spines; she could die if she wasn't careful.

As he spoke, Shinichi took out the ten-yen coin that Hattori had given him earlier from his pocket, flicked it with his finger, and the coin spun in the air and drew an arc before falling directly into the hood of Kougami Mai's hoodie.

Shinichi explained, "Although it's quite dangerous, as long as we make sure the poison is in the middle of the ice, we'll be fine if we're careful."

Inspector Megure asked, "How can you be sure she was hiding in the hoodie?"

"Look, the coin is still sparkling, isn't it?" At this moment, Hattori had quietly come up behind Kougami Mai and took out a coin from her hoodie to show everyone. "This is the best proof that contact with potassium cyanide produces a redox reaction."

The evidence was irrefutable! Hong Shangwu's eyes flickered slightly, and she finally admitted it!