Which novel did Patrick Ness write from an idea of terminally ill, Siobhan Dowd?
Patrick Ness: Patrick Ness (born 17 October 1971) is a British-American author, journalist, lecturer, and screenwriter. Patrick Ness:  He was born in the United States and moved to London at the age of 28, and now holds dual citizenship. Patrick Ness:  He is best known for his books for young adults, including the "Chaos Walking" trilogy and "A Monster Calls".
i don't know