Sonic and his friends found an ancient black heart gem from the tomb chamber. They just thought it was an ancient artifact but when Sonic touches it, an unknown black entity enters his body. Sonic goes through different changes for days, the unknown entity takes control of his heart and his body.

There was a reason why Sonic only wanted to be Amy's best friend. He fears that if he begins to fall in love with Amy, he will become afraid and start crossing into the dark side. Once he asks Tails how to deal with stressful thoughts (Without revealing his secret), the young fox gives him a journal. But how long can he keep these thoughts a secret? And once it gets revealed, will his friends begin to lose trust in him?

It all started with a realization and now he's insane. They spend an awesome night together and now Amy has to keep a secret from Sonic while also embarking on a dangerous adventure. What will happen when he finds out? How long can she keep it a secret? What happens after?

Sonic being born normal has had many fun times with his friends but what the others don't know is that sonic is hiding his true self that is until eggman finally unleashed his true demon self what will happen find out in the story

WARNING: There will be a lot of blood mentioned, and some gore (I guess) if you're not ok with these then don't read this fanfic Eggman zapped Sonic with a gun in his head leaving Sonic slightly insane. He becomes overly protective and violent at times. Then in the next battle Amy gets seriously injured. Sonic goes completely insane and decides to build a new world where everything will be perfect for her and their friends. Sonic:21 Amy:19 Tails: 15 Knuckles: 26 Sticks:19 Figure: Eternal

It's 5th grade, and Amy moves away when Sonic begins to bully her to an extreme extent. 11th grade rolls around and she returns to the city and attends the same high school as her best friends. Little does she know that Sonic attends the same one. WARNING: This story contains family issues, abuse, cheating, rape, sex, assault, and medical issues. Do not read if you are sensitive to these topics. P.S. This is a true story, but with a twist.♡

For a few nights, the princess of the kingdom, Green Hill, Amelia Rose, has been having dreams of a certain hedgehog she's never met or seen in her life. It wasn't long till her kingdom had captured one of the enemy's general, Sonic the Hedgehog. Noticing this was the hedgehog from Amy's dreams she convinced her father from executing him and has given him the chance to change and fight for their kingdom. Just a few days in with Sonic's new life, he grew to change when he had met the princess, and begins to slowly fall in love with her. 2 years had past, Sonic had earned the trust of the King and his people but in his absence he's betrayed the kingdom he fought with before. The evil Queen had declared war on Green Hill. The adventure begins as the kingdom fights for peace through the realm. Will love conquer all? -I'm the original LadySonikku who created the story from YouTube.

Sonic finds a weird red ring that causes him to act strange. And the more he sees Amy the crazier/obsessed he gets. Will Sonic do something to Amy? What will happen ?