Souls of Limbo

Sonic and Shadow have gone through so much, from saving the world to jumping through time. Unfortunately, some demons from their past still haunt them today. Mephiles is back and he wants one thing; to get revenge on Shadow for sealing him away. "One way or another, I will damn your soul and extinguish all of the fire in your life that keeps you burning." Sonadow/Mephiles.