My Little Pony: Nightmare Knights;

Equestria's in danger! With Twilight Sparkle and her friends unable to help, can Princess Luna and a team of reformed villains save the day?

Powerless and threatened by a great evil, Princess Luna discovers she can't count on her sister or any of the usual heroes of Equestria. Running out of time and with nowhere to turn, Luna assembles a team specially suited to save the day... a team of former villains! Will Luna, Capper, Tempest Shadow, Trixie, and Stygian all be able to work together and find a way into the most dangerous place any of them have ever been?

Collects the complete five-issue miniseries.