Late at night, Diamond Tiara hears a voice. It talks to her, whispers into her ears, but she does not know what the voice wants from her.
The voice is familiar to her and yet at the same time alien. Scary, yet comforting.
And, most importantly, it is persistent. Clearly, the voice has to tell her very important things, but it speaks in riddles.
Behind that voice is a gruesome truth, but also an opportunity. An opportunity to change events and the lives of ponies.
Diamond Tiara has five nights to help. Five nights, no more.

The cover picture belongs to Arceus55.