The Rogue Rebellion [Nightmare!Sans x Reader] [[SEQUEL TO FORBIDDEN]]

Warrior Cats x Undertale Multiverse Crossover ~~~~~~~~ None of the clans have seen Ash or the other rogues in years. Peace has settled among the clans, apart from the common small border skirmish. Nightmare and Y/N are expecting a daughter to arrive any minute. But there's always a calm before the storm. The eye of a...

Forbidden [Nightmare!Sans x Reader]

Warrior Cats x Undertale Multiverse Crossover ~~~~~~~~ Since the Multiverse was created, the Creators have been fighting over the AUs non-stop. It was a horrible, bloody war that lasted centuries. Many were killed and many were cast away as outsiders. One day, the Creators met in an AU called Dreamtale, and after anot...