Fluttershy has disappeared.
Equestria's most dangerous criminal has escaped.
And a monster from the dawn of time hunts its prey.
Starring Rarity as Sherlock Holmes, Rainbow Dash as Watson and the Great and Powerful Trixie as Dr. Mortimer
This is a sequel to Study in Rainbows, read that first. This is also a re-upload from an old EQD post.
Spanish translation: https://www.deviantart.com/spaniard-kiwi/art/El-perro-de-Villa-Poni-999962740