Original sentence: But because the fantastic nature of the superhero milieu allows almost anything to happen, some superhero series cross over into a variety of vastly different genres.Many superhero franchises contain aspects of crime fiction (Batman, Daredevil), others horror fiction (Spawn, Hellboy) and many are similar to "hard" science fiction (X-Men, Green Lantern).Superheroes are largely an American creation, but there have been successful superheroes in other countries, most of which share many of the conventions of the American model.The content of each of these stories is quite different, yet the same principle characters are involved throughout the series
Edited sentence: But because the fantastic nature of the superhero milieu allows almost anything to happen, some superhero series imprudently crossover into a variety of vastly different genres.But there have been successful superheroes in other countries, most of which share many of the conventions of the American model.Many superhero franchises contain aspects of crime fiction (Batman, Daredevil), others horror fiction (Spawn, Hellboy) and many are similar to common science fiction (X-Men, Green Lantern).Superheroes are largely an American creation.The content of each of these stories is quite different, yet the same principle characters are involved throughout the series, as a whole, seeming strange or disjointed