One night in Mobius, before Dr. Robotnik began terrorising the planet, three-year-old Shadow was sleeping with his twin brother, Sonic. They looked exactly like each other except Shadow was black, had white fur on his chest, and had blue eyes. He also wore gloves with rings attached to them and wore simple black and white shoes. He was also two minutes younger than Sonic.
In the Space Colony ARK, which was in the planets' stratosphere, Prof. Gerald Robotnik had finished one of his machines to start his new project. He used it to point a very accurate red beam onto Shadow. With a push of a button, Shadow got teleported onto the ARK, away from his brother.
Shadow opened his eyes a little, but Gerald grabbed his body and took him to a prison cell. As he carried Shadow, he said, "At last, I've found the perfect life form to use as my upcoming project." Gerald threw Shadow into the prison cell, "Now just stay there until it's done. It may be a while." Shadow sat up from the ground and saw the entrance was blocked shut with harmful beams.
The prison cell was large and empty. The only thing in there was a long bench and a window over it showing the view of Mobius. Shadow stood up, climbed onto the bench and looked out the window. "Why am I so far away from home?" Shadow asked himself. He sat in the corner, crying himself to sleep.
A few hours later, Shadow woke up from his sleep. He raised his head and looked down to Mobius again. He sat up and rubbed his eyes. Then a tray with a bowl of breadcrumbs and a small glass of water on it slid under a slot in the wall. Shadow crawled off the bench and went to the food. There was a note on it saying 'This must last a day.' "Well it's something", Shadow said as he ate some.
-11 years later-
Shadow turned 14 years old, still trapped in the Space Colony ARK. He was looking down to Mobius again through the window.
"I've counted the moon orbit Mobius. I've been locked up here for 11 years. I wonder if Sonic still remembers me"
Down on Mobius, Sonic is running around Green Hill.
"Oh yeah! It's the best being the only hedgehog around here!"
"Then again, it's been a long time, and the last time we were together, we were very young, he might have forgotten. I'll never forget you Sonic."
Suddenly, the intercom spoke. "Shadow, report to room 50 immediately. If you're still alive that is."
The beams on the entrance disappeared, and a trail of lights appeared on the floor leading to room 50.
"I'd better do what he says", Shadow said as he got up.
Shadow followed the long trail but finally got to the room's doors. The doors opened and Shadow stepped inside. The doors closed and locked behind him. Shadow was in a small empty room.
"Hello? Anyone here?" Shadow shouted, worried.
Suddenly, loads of metal arms came down from the ceiling, grabbing Shadow and rendering him unconscious. The arms cut into Shadow and changed his mind and heart with robotic pieces, transforming him to evil.
Some of his spines pointed upwards, and red streaks appeared on his body. His shoes got changed to increase his speed. The whole process lasted 1 year. Shadow awoke, and turned 15 years old. His eyes had turned red, and all the memories of his childhood locked in the ARK, and his brother Sonic, had gone. Shadow would never age again from that day; he was now a robot. Prof. Gerald had made him the Ultimate Life Form.