Co-author Bjørn Sortland is an accomplished Norwegian fiction writer and Professor of Creative Writing. Sortland's books have been published in 28 countries. He has written 68 books to date and his body of work includes children's and young adult books, novels, picture books, and suspense novels, and he has received numerous Norwegian and international literary awards. His writing often deals with the strange and complex aspects of the children's universe, infused with warmth, humour, and a sensitivity to the difficulties of growing up, including issues of love, identity, and pain.