The Dark Legacy: A FNAF Security Breach AU sequel

10 Years after the events of Dark Rebirth, Gregory has grown up into a young adult who's about to graduate with a diploma in engineering. In the meantime, he's finishing up his last two months as an intern at the new Mega Pizzaplex Plus, a massive expansion of the previous Pizzaplex which includes a Circus-themed Amusement Park, a Hotel, a Waterpark and an even bigger Pizzaplex and not one but THREE new series of animatronics. What's more, he's dating Harry Emley, the introverted descendant of Henry Emily. Life is good for Gregory but things are not all as it seems.

A string of new disappearances have left the town worried, there have been sightings of 'monsters' and what's more, mysterious individuals appear to be stalking Gregory and his loved ones. And to add fuel to the fire, a childhood friend from Gregory's past named Cassie returns to town, suddenly complicating the relationship between him and Harry while keeping secrets of her own. Secrets that she herself isn't even aware of...