They’re back! The wildly popular children’s book duo Andy Griffiths and Terry Denton have added another 13 levels to give us The 78-Storey Treehouse live from the Playhouse stage. With over 2.6 million copies of the hilarious series sold, this new installment boasts a Scribbletorium, a high security potato chip storage facility (guarded by one very angry duck) and even an open-air movie theatre.