My Little Pony: Friendship is Magic comic. Includes OCs. Summary: When a threat with power bigger than Princess Celestia and Luna's hangs over Equestria, it is up to an ex-guard, a doctor and his sister and an unwilling Changeling to bring back the only force they could hope would save them all. What is that mysterious force? Why are the Princesses so hopeless against the threat? And what is that ex-guard hiding? Also found on ValkyrieSkies.deviantart.com