QUICK AU TIME :D
The owner of silly pete's dicide to take care of his rival and burns down freddy fazbear pizzaria, while the animatronics are trying to escape, goldie ask bonnie to promise him that, if he doesn't manage to escape, he'll come back there, and let him know that he's there if he hears his voice, goldie and some other animatronics get stuck in the burning pizzaria, and while goldie is trying to get out, he finds the person who started the fire and pins him down in the ground
"What are you gonna do? Kill me?"
"No, but if this place burns down, you're burning down with it!"
Goldie dies in the fire, while the owner of silly pete's escapes
Goldie turns into a phantom, and keeps making these "calls"(singing) in hope that bonnie hears it, but with the time, phantom goldie starts to forget things from the past, including bonnie, but he keeps doing these calls
Some years later, he does another of these calls, but this time, he hears another voice singing with him, it was bonnie, turns out bonnie somehow manages to come to that place, but he doesn't remember bonnie at all, so bonnie tries to make goldie remember him