The first in an explosive middle-grade series from the bestselling Norwegian author of all time!
Jo Nesbø is the most successful Norwegian author of all time. He has sold more than 20 million copies of his novels wand his Doctor Proctor series has been translated into more than 35 languages. The first book in the series, Doctor Proctor's Fart Powder, sold more copies in his native Norway than any other children's debut.