Oswald felt something wrong, mean he's felt it for a few days.
Feeling like someone was watching him, but he chalked it up to that feeling being the after effects of what happened at Jeff's place, there's another investigation cause Jeff went missing so maybe that's why some people were on edge.
His dad however, seemed more on edge than normal; Like, he was more distracted, half listened to anything and he looked tired.

That night, he dad stood by the window looking out into the street, like he was watching or waiting for someone or. . . Something to come.
"Dad?"
His dad turned around, Oswald was drawing on the coffee table and looked concerned for his dad,"You okay, is something wrong?", he shook his head, kneeling down to him,"No, no: It's just. . . It's been a long day. . . And week.", maybe so, but Oswald couldn't shake it off that something was bothering his dad.
"I promise, Ozzy."
Oswald nods, though he wasn't convinced since he noticed his dad making sure the door was locked for the 5th time.
Even his mom noticed.

=

That night, Oswald couldn't sleep. . . His arm hurt.
So he got up again, to get medication to numb it and then would get the sleeping drops because he flipping forgot to take them.

In the kitchen he got a cup, poured some water and looked the medicine and took it.
Poured himself more water to take the sleeping drops-
*Hiss*
He stepped back, confused to see Jinx, his cat, awake and seemingly hissing at the window,"What is it girl?", Oswald walked over, Jinx's fur was standing up and was constantly growling and hissing at. . . Something.
Oswald squinted his eyes, but all he saw was a dark street, street lights and nothing.
"It's probably just a bird or squirrel."
He pet Jinx, who didn't let up; But he was tired, and wanted to go to bed so he returned to his cup of water.
Putting in the sleeping drops, he quickly drank it though after he gagged a bit, the taste was stronger than he remembered.
. . .
He put the cup in the sink and went to bed.

Jinx began to hiss and Meow more, not at the window but rather. . . At the unfamiliar man in the house.
The man simply picked up the cat, despite Jinx trying to bite, scratch and wake her humans to warn them, he shoved in a cupboard under the TV.
Ignoring the cat, he crept through the house slowly and steadily.

~

Entering the child's room, he stood there for a moment at the boy.
He didn't know how much would be enough to knock him out completely, but seemed like he was out cold.
So, man scooped up the boy in his arms, not once did Oswald stir.

=

"MEOW!!!!"
"Dear. . . The cat. . ."
Fredrick sat up, getting out of bed as his wife followed him.
"Jinx; What are you-"
Where was-
Fredrick knelt down, opening the cupboard and the cat leaped out!
Jinx ran to Oswald's door, confused Jolene opened the door-
"Oswald?"
The room was empty, no trace of him in bed.
"Oswald?!"
They searched his room, the house; But Oswald wasn't there.
Then Jinx hissed at the open window, both looking out they saw a figure walking towards Jeff's Pizza, carrying something over his shoulder.
"Did he-?!"
"Come on!"
Fredrick took the lead and ran out, not carrying if he was in slippers and his wife followed once putting on some crocs.

~

Ben's Dad, David, hearing a commotion and something breaking, he left his house worried that someone was being robbed.
Seeing Fredrick and Jolene leave their house, scared and worried,"What's happening??", "Oswald! He's been taken by-","That man!", David turned and just around the corner a man disappeared.

~

Fredrick threw open the doors.
The restaurant had a different atmosphere as they went inside together seeing a man enter here.
As they walked through the restaurant, it being so late made the place more creepy and only make them feel more bad for leaving Oswald here alone so many times, but they heard. . . Humming.
Coming from. . . The ballpit?
David grabbed pipe as a weapon as Jolene held her husband's arm as they went into the room.

From the shadows, a figure was standing by the ballpit, was humming a tune not familiar to them.
But it was clear they were holding someone.
"Drop the boy before I whack you."
The humming stopped, seemingly turning to them before stepping more into the light more.
A chill ran through Fredrick.
"Mr Afton."

A very tall man, also very thin, pale and wore a slightly baggy purple shirt and that man, Fredrick knew all too well.
And he was holding his son.
"Fredrick; Oh, how it's been some time."
Jolene frowned,"You know this man?", "We were. . . Acquainted in the past, but how unexpected that you had a child: How, adorable he is.", Fredrick wanted to kill him, he wanted to strangle that man as held his son his arms, but he couldn't. . . He could hurt Oswald.
"What-. . . What the hell are you going to do to him?!"
Mr Afton smiled,"Oh, nothing; I won't lay a hand on him.", Jolene stepped forward, David still holding pipe and gripping it, ready to swing.
"What the hell do you want with my son."
Mr Afton stepped back, stepping on the edge of the ballpit.
"Oh, it's nothing personal; Well. . . Not to you, or your friend there."
Mr Afton, locked eyes with Fredrick, who was getting more pale by the second.
"You took away my son. . ."
Jolene and David froze, confused and turned to Fredrick.
"So now; I suppose you can call us even now, Fredrick."
Mr Afton, then fell backwards into the ballpit holding Oswald.
"OSWALD!!!"
"NOOO!!"
At first, they were confused but once getting in and digging around, the man had vanished!
No trace of him in sight. . . Not him or Oswald. . .
"How. . . How did. . ."
"WHERE IS MY SON!?! MY BABY?!?"
Fredrick stood there, frozen. . . His brain not processing what was happening.
But at the same. . . The same thing ran through his head.
'Mr Afton Has His Son.'

=

William emerged from the ballpit, not understanding how it could do this?
He didn't know.
But he got out, still holding Oswald and simply left the Pizzeria, continuing to hum a tune.