Something strange is happening to the city's water supply. It is up to Arnold and Gerald to find out what. When they descend to the depths of the sewer and discover the Sewer King, an even bigger mystery unfolds. Will Arnold and Gerald be able to save the city's water supply before it's too late?
"synopsis" may belong to another edition of this title.
Book Description Simon & Schuster Children's, 2000. Paperback. Book Condition: New. Never used!. Bookseller Inventory # P110743404092
Book Description Simon & Schuster Children's, 2000. Paperback. Book Condition: New. book. Bookseller Inventory # M0743404092