Vampires don't live for anything but survival. Mephiles lived by that motto everyday of his life. He is a very old vampire and is happy to be alone. He has a system of killing people methodically so that he doesn't get caught. However, a smart two tailed fox was about to figure out his system and tried to find him. Meanwhile, Sonic is too distracted by Eggman's dissappearance to realize that there is something bigger going on especially with Shadow.