I'll say this, try reading some classic children's books in original literal translation - like Hans Christian Andersen, for example.
Or the 1838's The Tinderbox, and I'm quoting from Wiki:
"On the day of execution, the soldier sends a boy for his tinderbox, and, at the scaffold, asks to have a last smoke. He then strikes the tinderbox and the three monstrous dogs appear. They toss the judge and the councillors, the King and Queen into the air. All are dashed to pieces when they fall to earth."
A bit graphic for pre-teens? Don't you think so?