I want to know the answer to the following question:
Who wrote the 'War Horse' book?
All the background I'm provided with is that "The film, based on the novel of the same name written by Michael Morpurgo and published in 1982, follows the long friendship between a British boy and his horse Joey before and during World War I – the novel was also adapted into a hit play in London which is still running there, as well as on Broadway.". Is that enough to answer the question?
Answer: yes