The 13-Storey Treehouse has been awarded the Diamond Book prize in the Netherlands
The first book in the Treehouse series (De waanzinnige boomhut) has sold more than 200,000 copies in the Netherlands, and has been awarded the Diamond Book prize. The prize has been around since 2012, but has only been awarded to a children’s book four times before. “When I started I was happy if one child would want to read my book. This is more than I could have imagined.” – Andy Griffiths
