No one knows how, but the Golden trio drank a weird potion (Hermione said not to), and they teleported into a weird town.

Hermione| "where are we? We have to get back to Hogwarts!"

Ron| "you think we know??"

Harry| "look at the sign.. 'Derry'.. what is Derry?

A herd of kids came biking down the road, and quickly stopped their bikes no not hit the trio.

Bill| d-do you g-guh-guys need help around here?

Richie| the brown-haired one looks like Eddie's mum!

Eddie| dude stop talking about my mom or I'll blame my asthma attack on you..

Stanley| Don't mind those three. I'm Stanley.

Harry| nice to meet you... Er.. the ginger to my left is Ron and the one to my right is Hermione..

You were just sitting on your bed, reading the Harry Potter series. You watched IT a couple hours ago. You liked it.

Before you know it, you get teleported into the town with the Golden trio. (Good luck :3)