It all started out as a normal day in Danville, somewhere in the glorious Tri-State area.
Phineas Flynn was building something along with his British stepbrother, Ferb Fletcher.
Isabella Garcia-Shapiro, had popped into their backyard, ever so happy as usual.
Perry, the pet platypus of Phineas and Ferb, just lazily rolled over.

"Whatcha doing?" Isabella smiled at her crush, Phineas, as he blowtorches a marshmellow.
" Well, you see, Ferb and I were talking, and so he said, ' Why not make a...'"
Isabella got lost in Phineas land again, tuning him out on accident.
When she tuned back in, she heard, " And that's when the marshmellows kick in to the super peanuts, so they learn the folk dancing-"
Ferb blinked.
" Oh.. Well, long story short, the circles touch, so I guess that means that it works."

Isabella nodded. " Cool! Oh..." She stared at Perry, who must have been desperate for attention, as he was now emitting a purring noise, rubbing against her leg happily.
" Awh." Isabella picked him up, carrying him over to the tree, sitting down.
The two sat there for the next 20 minutes or so, Perry contentedly purring while Isabella stroked him.
Suddenly,though, out of the blue, Perry's head jerked up, his purring have stopped immediately.
And then...
He tore off, after something apparently.

She gasped and then darted after him.
" Perry! Wait, don't go into the street! It's dangerous for a platypus!"
Isabella flinched as Perry almost got hit by a truck.
She didn't know what caused him to do this, but clearly something did. Platypuses don't just bolt out into the street, right?
Usually, they would do such a thing if they were after something.
The question was, though, what was he after?
Phineas stared,the yelling having caught his attention. His eyes were wide open as he stared at the scene.
" Perry, boy, no! We don't run into other people's yards, no matter who it ?"
Perry skittered to a stop, despite the fact that whatever he was after was going past her house, towards an old, abandoned house.
Isabella sighed in relief.
That was... Just creepy, for a second I thought he was chasing something. , she thought.

Perry pouted, probably pretty upset because Phineas personally refused to let him pursuit some sort of unidentifiable object.
Phineas jut gave Perry a stern look as he dragged him back to their yard.

About twenty minutes later, Mrs. Flynn-Fletcher came out back.
" How are you kids doing?"
" Fine!" All five children just smiled.
" Do you want some peanut butter cookies?"
" Buford loves cookies!" Buford then poked Baljeet, who was dressed as a reindeer, pulling Buford in a sleigh.
" If I pull you inside, do I get one?"
" Mush, nerddeer!"
Phineas beamed. " Sure mom! Aren't you coming too, Isabella?"
She shook her head. " No thanks, I don't like those kind of cookies."
" Oh, that's too bad."

She sat there, watching Perry run around.
That's when Isabella realized that Perry was chasing a little black object, some sort of rock or something with what looked like a lens on it.
Perry followed it out of the yard.
She followed out of curiosity, being the leader of the Fireside girls, they were supposed do to thing like this, things that could lead to adventure.
But then she noticed something peculiar about the object.
That little rock-camera thing was on a string, which meant that someone was trying to do something to an innocent platypus, or even worse, her.

Perry disappeared behind a corner, which was quickly followed by whimpering and a loud squawk, like someone was hurting him.
Panicked, she headed into the direction.
Hearing a second pain-filled squawk scared her even more.
" Perry?" Isabella quickly followed the sound.
She then saw Perry, laying there whimpering.
He had a few gashes on his tiny arm and body, but nonetheless alive, thankfully.
She was about to look up and see who had done such a thing, but then...
BAM!
Then everything went black, the last thing she saw was her blood, trickling down her face, mixing in with her tears.