Based on the Artwork used, it just gave me such a great, gory idea!

Twilight opened her latest Antique Barrels she searches for any interesting finds. She remembered how Starbust found the book which helped to get solve a thousand year old Mystery. Only to find this old pocket watch. She has no idea that it possesses a great evil.

The evil makes her fixated on the watch, never leaving it out of sight. She calls it her baby and soon it revealed its self to her. The watch is the embodiment of an ancient evil and is searching for revenge.

It gives corrupts her and Twilight becomes a monster. She transforms into a smart killing machine full of stitches and scars, her whole body is transformed into Alicorn, Pocket Watch hybrid. She is guided by the evil on how she can travel back in time, so she can get her library back. All she needs to do is kill her friends. Simple when your mind can only focus on murder.