How many pages in lunch money?

Lunch Money is a graphic novel series written and illustrated by Andrew Clements. The series consists of four books:

1. Lunch Money (2010)

2. The Disaster Club (2011)

3. The Locker Hero (2012)

4. Trouble Maker (2013)

Each book is approximately 128 pages long, for a total of 512 pages in the series.