True to his word Nakajima Taro turned himself in but the judge let him perform community service for most of his sentence, and Renjiro was set free, as it was clear that the murder was faked by the gardener to explain Taro's disappearance. And the grateful Nakajima's raved about 'The great Kogoro and his brilliant team of detectives.'

As Kogoro, Ran and the boys sailed home on the yacht Conan and Arthur stood at the rail looking at the sea.
"That was quick thinking, to grab the Apotoxin like that." Said Conan.
"Thanks, you know that was incredible what you did back there for that family."
"No, what we did for that family. I could never have freed myself or Taro."
Arthur grinned mischievously as he said.
"I told you we should just tell Ran and stand back and watch her bring down the Black Organization!" Conan looked irritated for a moment before he laughed and said.
"She's really something, isn't she?" He looked over at Arthur.
"You know I been thinking, does your offer to teach me to juggle still stand?" Arthur looked at him in surprise.
"I mean I do think better when I'm moving and I can't always kick a soccer ball around."
"Sure I'll teach you to juggle! And maybe some lock picking and escape techniques in case I'm not around. And you could teach me how detectives think." His grin became wider.
"Remember when you said I was smarter than I look?"
"Yeah."
"You do realize we look a lot alike?"

As a truce had become a partnership, now with shared laughter the partnership changed into a friendship. A friendship that would only grow stronger and perhaps, could become the Black Organizations worst nightmare.
For now, although they were still trapped as Arthur and Conan, neither Kaito nor Shinichi were alone in their fight, and they now had samples of the Apotoxin for Ai to work with.

Later that night Inspector Nakamori received a phone call and a familiar and annoying voice suggested he interview the men arrested during detective Mori's latest case "To shed some light on who was shooting" during the KID's last heist.
"%#& THAT BLASTED KID! $! %$$."
Several officers jumped at the outburst from the inspector's office.
"The KID is back!" said one.

On Monday Yamada-sensei was very grateful that this was the last day he would be substituting for Mrs. Kobayashi. He was never again going to teach a class that included Edogawa Conan or Haibara Ai. 'The only thing that could make it worse would be if there were more of them' He thought.
"Sir, Sir! I have a new student for your class" said the secretary.
He turned around to look and saw TWO Conan's!
The secretary continued, "This is Conan's twin brother, Edogawa Arthur."
...
"Do the teachers here often act like that?"
"No Arthur, I've never seen a teacher do that before."

End of Little Kid part one.

I'm starting on part two, look for it in about two weeks maybe less.
I hope you liked the mystery; I've gained a new admiration for anyone who can write a good mystery. I had to start by figuring out what happened, and then I had to figure out what clues and evidence that would leave. Then I could write the story.
No I don't know what the teacher is doing in the last paragraph but that scene has been demanding a place in the story since the second chapter. Go figure.
Mescal is a drink kind of like tequila, I don't know much about it; I just wanted a name for one of the BO that hadn't been used too often.