That has been the typical format of the books they have done together.
Just seeing this again now that the thread has been bumped. My grandfather got my kids the Pollack megillas esther this year. Such a brilliant piece. Beside the fact that the structure - showing the megilla as a play on a stage with a fixed set - is great for showing the story to kids, the metaphor of the megillah as a play, with the playwright/director determining what goes on from behind the scenes - is just brilliant.