After school, as the sky gradually darkened, at Professor Agasa's house.
Conan sat on the sofa, holding up a small notebook as he reported to Ai Haibara, who was sitting across from him. "When I changed back, it was around seven o'clock. It felt like ants were crawling all over me. My heart hurt, my head spun, and it felt like I'd taken too much heroin and was about to drop dead. I broke out in a cold sweat, too."
"Why did it feel even worse than last time?!"
"Pain is normal."
Ai Haibara sat opposite him with her arms folded across her chest. "After the antidote wears off, your bones, muscles, and even nerves all regress. Basically, you're going through the shrinking process all over again. And the side effects aren't limited to the reduced duration. Other side effects will also stack based on how many times you've used the medicine."
There was actually something else she wanted to ask.
Namely: How did he know what taking too much heroin felt like?
Seriously, could a normal person possibly know that feeling?
Don't tell me he's actually done it before?
Ai Haibara remained silent, merely grumbling to herself inwardly.
In the end, she still did not voice that question.
Instead, she murmured, "So this time, you only lasted twenty-two hours?"
"More or less."
"Looks like the drug resistance to the antidote really is strong."
Ai Haibara nodded and pondered, "If this continues, the next time you shrink back, it'll probably only last around twelve hours. Maybe even less."
"Huh?!"
Conan froze for a moment. "How can it get even shorter?!"
"That's perfectly normal."
Ai Haibara looked at Conan with a speechless expression. "Even if I explained the principle, you wouldn't understand. In short, my medicine now works on roughly the