Montague Mad-Rat is a very friendly rat. The only thing he does all day is
collect berries and feathers for his mother in Central Park. Montague and his parents live
in the sewers of New York City.
One day Montague saves the life of a wharf rat named Isabel Moberly-Rat. She gives him
a kiss. Montague is now very interested in the wharf rats. It turns out that all the wharf
rats are going to get poisoned by humans. They need $50,000 to stop the poisoning and
Montague Mad-Rat want to help. But what can one rat do to get $50,000, especially a rat
who is an outcast?
To find out what happens, you have to read the book.