Notes

Other Title: Dr. Proctor's fart powder

Other Title: Fart powder

Originally published: New York : Aladdin, 2010

Translation of: Doktor Proktor's prompepulvet

New friends Nilly and Lisa help eccentric professor Doctor Proctor 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
upper age: 99