The Toll Comes Due

Once upon a time, there was a kingdom called the City of Cities. A kindly King and Queen presided over it and saw to it that all was good and well in their kingdom. But try as they might, badness crept into their beloved city, poisoning it, alley by alley.
The Queen wishes for two children who might save the City of Cities.
The wish, granted. A trick, played.
Can the City of Cities still be saved?
Turn the pages of this epic retelling of an old favorite tale to find out!