Hi! Our One-Act Editions are meant to be a bridge between our Broadway Junior titles and two-act musicals, specifically created for young performers. Middle school-aged students can certainly perform these shows, including Descendants. However, you know what is musically suitable for your students far better than we do. You can go to show page and click "Full Cast Info" below the cast size icon to see the vocal ranges for the characters: https://www.mtishows.com/disneys-descendants-the-musical