Doctor Proctor's Fart Powder

Nilly and Lisa help eccentric professor Doctor Proctor to develop his latest invention, a powder that makes one fart, making them very popular at school, but someone is planning to steal the industrial-strength formula for evil purposes.

• | Author: Jo Nesbo
• | Publisher: Aladdin
• | Publication Date: December 07, 2010
• | Number of Pages: 288 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 1416979735
• | ISBN-13: 9781416979739