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?
This is a My Little Pony: Friendship Is Magic fanfiction written by Pen Stroke
as a horror for Halloween. The fic can read here. It even has an equally dark sequel here.
Tropes:
- Black Magic: The Clavicula Concorida Regis is said to contain evil spells meant to control monsters.
- Living Shadow: The darkness in the tunnels. It can actively kill any unsuspecting pony inside the tunnels.
- Sanity Slippage: What happened to poor Fortress as she waited for what felt like an eternity (literally) for reinforcements to arrive.
- Sealed Evil in a Can: The Living Shadow in the tunnels were demons trying to free their master, Tirek, from Tartarus.
