The Fourth Stall Part Two

The Fourth Stall Part Two is a hit book by Chris Rylander. The book is a sequel to The Fourth Stall(Book). In The series there is a book after it called The Fourth Stall Part Three

Plot
Mac's business comes to a turning point. Dr. George, a ruthless vice principal known for "cleaning schools" shows up and intends to ruin Mac's business. Will Mac and Vice stay out of trouble while maintaining it?

Trivia

 * It is revealed that the business started when Mac was in 4th grade