To save her sister and her faithful student, Celestia herself must travel into the ancient tunnels beneath the ruined castle in the Everfree Forest. She, and the guards who accompany her, must face the dark, twisting corridors. Still, what was Luna and Twilight's purpose at the old castle? Why were they unable to return of their own accord?

And what watches Celestia from beyond the light's edge?

Some things in this world happen by chance. Others do not. Twilight Sparkle is about to learn a disturbing truth that will turn her world upside down.

- Originally written May 2011 for Deviant Art

Reading this story first is strongly recommended:
(Blood is Thicker) http://ciroton.deviantart.com/gallery/26378692#/d3e1ndq

Credits:
~Image by JohnJoseco~ ~Edited by BrotherPrickle on Deviant Art~