Silly little fic I wrote some time ago. Enjoy!
Disclaimer: I don't own Detective Conan. I only write fanfiction.
"Hey, what are you looking at?"
Kogoro suppressed a groan. How was he supposed to work with this noisy, nosy kid hanging around him? What happened to that book Ran had given him?
"I finished it already!" the boy replied. "But it wasn't a very hard mystery, so can I look at the case file? Please?"
"Look, can't you go find another book or something?" Kogoro grumbled. He really didn't have time for this right now. He had to figure out the murder method before the currently detained suspect – and from his behavior, almost certainly the culprit – was released. Yet he had nothing but vaguely suspicious points to connect, and absolutely no clue were to start.
"So this guy was a baker, right? Because if you look…"
Conan had scrambled up the desk and was struggling to keep his torso held over the top, short legs knocking against the side. He pointed at the picture, saying, "He was strangled, wasn't he? Are you sure the weapon –"
"Hey, get off! Ran'll have my head if she finds out I showed you these!" Not that he was too fond of the idea himself – the kid may be too used to murder scenes already, but that didn't mean Kogoro should scar him further.
Pouting, Conan protested, "But I can help you! I'm good at this! Did you see that that tree over there has notch marks on it, or that one of his middle buttons is undone, or that he's holding a brand-new apron even though he just –"
"You brat…" Kogoro growled, readying his fist to bop the boy on the head.
"Dad!"
The oddly mature voice of his daughter brought him back to his senses. "R-Ran! I was just…uh…he kept trying to look at my files, so…"
"Mommy!" Conan cried happily, oblivious to the danger he had been in.
Ran smiled, holding out her arms. He ran to her, and hugging him tightly, she said, "Hi, Conan! Did you have fun?"
"I solved the mystery in the book before the detective did!" he declared proudly.
"Did you? That's great! Good job!" she laughed. Kogoro relaxed for a moment, only to jump to attention as she glared at him.
"Geez, Dad, your own grandson?"
"It – it wasn't – I didn't mean to! He just looks so much like the brat when he was –"
"He's not a brat, he's my husband!" She scowled, then huffed, "Thanks for watching him. Come on, Conan."
"Bye, Grandpa!" Conan called as she closed the door.
As the footsteps grew quieter, Kogoro heard Ran's voice trail up the stairway. "Conan, next time Professor Agasa's sick, you're going to stay with Ayumi-chan, okay?"
"But Grandpa has such cool stuff to look at!" Conan objected.
Kogoro sighed. He loved his grandson, but he was more of a handful than his father had ever been.
He looked over the file again. Reluctantly, he remembered what Conan had said. Notch marks? A button? A new apron? What did that have to do with –
Oh. He slapped his forehead. The answer was obvious enough now.
Picking up the phone to call Inspector Megure, he mused that it might have been a good thing that the original Conan had turned out to be Shinichi. He'd forgotten how irritating it was to have a child notice clues that he could not.
Although she isn't there at the moment, Eri is living with Kogoro - hence his being more disciplined and actually getting his work done. Not that he doesn't do it now, it's just...y'know.
And of course Shinichi and Ran will name their son Conan. "Arthur" and "Sherlock" don't translate nearly as well into Japanese.
Constructive criticism is appreciated. I hope this amused you!