The Return of Cipher and Mephiles (temporary title)

by TechtontheDark117

In Bill's final moments, his older brother Mephiles comes to his aid, in exchange for information on how prevent his own demise, which leads to events that merges the worlds of Mobius and Earth. However, Bill is tempted to join his adversaries and their new friends, since he doesn't want to see the arson sparks his flames again.

1. Prolouge

As Bill Cipher, the one-eyed dream demon, pleaded to Stan Pines to allow him to live as the realm of his mind was being erased by the Memory Eraser, time suddenly came to a still. "Uh?! What's Going On?!" Questioned Bill as he looked around in complete confusion. He did try to escape earlier, but his power was not able to work and allow him to escape. However, all of his questions were answered by a single voice.

"What a fine predicament you brought among yourself, Cipher. It's Disappointing that I must come to your aid all the time." Bill quickly turn to the source of the voice in fear as he saw a pale colored anthropomorphic hedgehog with green reptilian eyes that were similar to Bill's. With a shaky voice, Bill shouted: "Mephiles? I haven't seen you since we left our dimension! Wait... How are you even here?" Asked Bill as Mephiles swirled the light blue flames in his fingers. "Currently, in my reality, I am omnipresent throughout the multi-verse. Although, being omnipresent throughout time, I have discovered my own demise will come shortly." Stated Mephiles. This Surprised Bill, due to the fact he knew that his older brother was far more powerful than he was, but before Bill could ask the obvious question on his mind, Mephiles continued: "I have a way for you to escape this possibility. In exchange, you tell me about the Phantom Ruby, the gem that allows beings to extend a piece of their soul into it as a..." Mephiles then searched for the word that fits, "extension of themselves." Bill was hesitant, but soon time seemed to slowly catch up with them.

"Tick Tock, Cipher. This may be your only chance for survival." Stated Mephiles with a sinister tone. Fearing for his life, Bill then complied as he used the last of his energy to materialize a black and red gem in his hands. "Here! Take the Ruby!" Stated Bill in desperation. Mephiles then took it and quickly transferred a piece of his soul into before splitting the gem in half as he told Bill: "Repeat these words as discreetly as possible, Cipher. X-O-L-O-T-L, My time has come to burn. I invoke the ancient power that I may return." At that moment, Mephiles warped the two halves to different locations. Before leaving and returning time to normal, Mephiles stated: "I'll be back and together we will destroy our enemies Cipher. For now, Don't try to screw up."