The Men In Black from Wayside School are Progressors.This is why they are the only ones who can see Miss Zarves. The nineteenth story does not exist. Miss Zarves teaches the class in the nineteenth story. There is no Miss Zarves. Nebraska does not exist. The Progressors have a base in Nebraska. The Progressors don't exist.
Mel Kelly is a relative of Australian outlaw Ned Kelly.This doesn't need explaining.