A/N: So, I was watching Scooby-Doo because my little brother and my cousin were watching it, and it made me look up whether there were Scooby-Doo and Undertale crossover stories on FFN.
There's two.
Now there's three~
Inky is an OC. Hopefully the only one that appears….
I should be working on Mercy or No Mercy but I'm not
—
A string of arsons had the police confused.
For one thing, the arsons were almost always rich, prissy people who had publicly spoken out against monsters. A few had been people who had attacked monsters or monster supporters.
For another thing, there was never any evidence at the scene of the crime. There were no footprints. There was no indication of where the fire started. The only clue was a small playing card.
It was the Joker. The one that comes with every pack and indicates what kind of pack it is.
The problem was that it was always a different one every time. The only non-changing detail was that there was always a small 'I' branded on it. What the I stood for, no one knew.
That's when they decided to call Mystery, Inc.
The group of teenagers had an uncanny ability to root out crime. While they did meddle quite a bit, they were also quite a large name when it came to detective work.
Of course, there was the small problem with the fact that the trap was either a net or something overly complicated. But it worked, so no one complained.
—
They were on what was supposed to be a nice vacation when the phone rang.
As usual, Fred picked it up. He always did. "Hello?"
"We need your help."
—
A/N: I hate this short chapter
But it was necessary to flesh out the thing
You all know who the arsonist is don't you