As Acheron reached the door she told both Derpy and Carrot Top to stand back. From the black crown came whips of blue magic that struck out to touch the door. As soon as they touched they started turning the door blue when the blue collided with the gold the door opened. Acheron told them again in the same quiet voice "Stay quiet I'll be right behind you I need to lock the door". Carrot Top crouched down as she started walking through the door while Derpy walked normally. Carrot Top kept crouching until the door shut when the only path of light became darkness. Carrot Top whispered, "Where are you Acheron, how far do we walk". Carrot Top became more scared as they walked until she bumped into something.
Carrot Top put up her hooves and felt what she ran into, it was cold and it felt like glass. As Carrot Top looked into the glass Derpy asked what it was.
Carrot Top replied, "I know you to well, the apology you said to Acheron was a lie". Derpy sighed and said, "Yeah I know I'm sorry and for real this time, I'm just not going to tell her". Carrot Top turned and nodded to acknowledge that she knew the apology was sincere. Carrot Top was about to speak when Derpy said to turn around.
Within the glass came a blue light, then roaring sounds and giant red dots surrounded them. The blue light turned into a ball and floated up the glass wall when it came out. Blue lightning struck out and hit Carrot Top over and over again when Acheron appeared behind Derpy.
Acheron smirked and said, "You were right to be suspicious about me and I fooled you, I just need to bring you close enough to my other self to free me". Acheron melted before Derpy's eyes. Derpy turned around to see a blue cloud of smoke and a firestorm above her in the sky. Carrot Top was floating in the air being shocked more and more from the blue lightning when skeleton ponies rushed into view and started pushing Derpy back.
Derpy cried " Let me go I need to save my friend"! Suddenly a wall of ice shot out and covered the skeletons, saving Derpy.
As the room grew brighter Derpy saw huge dragons being turned to ice, the cried out in pain and tried to melt the ice with their fire but soon fell to it. Derpy in an unconscious thought yelled out "Acheron I'm going to kill you"! Derpy fell into a maze of her own thought. Derpy could not hold back her own wall of tears as she ran from the collapse of her sanity. Derpy turned around to see Acheron step out of the blue cloud, she was different. She was now a chalky white and her hair had turned to sharp ends that moved in quick jolts. Derpy ran back to the door and pushed it open all she heard was Acheron shout "Don't open that door"!