Counterfeit

Pennywise doesn't exist, he isn't real.
He isn't.
He is not real.

The Loser's Club remembers Pennywise. They remember everything-
But Pennywise doesn't exist.
George Denbrough is alive! But didn't little six year old Georgie die four years ago?

Bill, Stan, Richie, Eddie, Mike, Beverly and Ben recall each and every memory of that fateful summer, each memory of Bob Gray- or more famously known, 'Pennywise The Dancing Clown', and are forced to keep quiet about it when Georgie miraculously reappears, and no one remembers his disappearance. Not even Georgie.

(Bullshit description but I hope I can keep the story spicy)