User blog comment:Demon Killer/Sonic of Mars/@comment-477304-20110825173251/@comment-477304-20110828175500

Not nessecary when you actually think about the other games in the "storybook" series, neither of them was based on a particular story. Sonic was thrown into the stories and faced some origional(ish) threat whilst meeting other characters from the stories that looked like his friends (for example, John Carter could take the guise of Knuckles)