Ms. Kibbles', beloved Mathematics book, has gone missing. Paddy McIntosh is suspected of being the culprit behind this horrible affair, as he is always naughty. The school has asked Doggie Darwin, Ms. Kibble's former pupil, for his assistance in finding the book.
Dexter Tomcat and the school believe that Paddy is the actual culprit, but Darwin thinks otherwise.
The question is whether or not Darwin is correct?