Chris Flynn’s “Mammoth’ novel takes us on an historical journey that encompasses the rise of America on the global stage, the foundations of French scientific thought, the uprisings in Ireland and Lewis and Clark crossing America – and all told from the perspective of an ancient mammoth dinosaur.Radio Girl by David Dufty, published by Allen & Unwin, is an overdue biography of one of the most remarkable Australians you’ve probably never heard of: Violet McKenzie.