From what I’ve played each “area” is fixed, so there’s a sewer level, castle ramparts etc, but the layout of them, the enemies etc. changes each time.
So it would go something like:
Area A > Area B or C (depending on which “direction”) you go
Area B or C > Area D
Area D > Bridge guy
But the areas aren’t structured the same way each time.
Don’t know if I’ve explained that very well.