Nightmare had been alone in his head for the longest time. For 500 years he was able to gain more power, a castle, a gang, and a reputation of one of the most dangerous beings in the multiverse. But when Dream had broken out of stone, someone else made themselves known, someone who should have been dead. OR Corrupted Nightmare is a parasite and Passive Nightmare refuses to die. He does not appreciate the identity theft. Updates every Sunday! Cross posted on AO3!
7 parts