The wiki says that Shadow Freddy appears in The Twisted Ones

The 'Five Nights at Freddy's' movie wrapped shooting in New Orleans and fan buzz has grown to “hornets on cocaine” level - Fable House

Nightmare Shadow Freddy, Five Nights at Freddy's Fanon Wiki

So, basically now FNaF lore be like: : r/fivenightsatfreddys

SpringTrap Wiki, Fnaf wiki

Sparky, Five Nights At Freddy's Wiki

The wiki says that Shadow Freddy appears in The Twisted Ones Novel. Is this true? If so can someone please explain the context? Is that why Nightmare appears on the cover?

To celebrate FNaF's 6th anniversary, I made another one of these. Here's the Unbiased Animatronic Guide! : r/fivenightsatfreddys

Mindy Simmons - Wikisimpsons, the Simpsons Wiki

Shadow Freddy, Five Nights At Freddy's Wiki

Freddy Fazbear, Five Nights At Freddy's Wiki

FNAF Easter Eggs to Find - FNAF Insider