In 1915 sisters Naomi and Sally Durance answer a call for nurses to join the war effort. They are escaping the family dairy farm in the Macleay Valley, and they carry a secret with them. Soon they are in Egypt, where they are put to work on the Red Cross hospital ship Archimedes as it patrols the Dardanelles. On Archimedes they witness Mars in all his ferocity, as he pummels soldiers in the massive, brutal metal brawl that is Gallipoli. Yet the sisters and their newfound nursing friends, with whom they will witness undreamt - of carnage and take care of unspeakably blighted men, find themselves courageous in the face of the horror. Naomi, Sally and their gang are then sent to northern Europe, where Naomi nurses in the visionary Australian Voluntary Hospital run by the committed and eccentric Lady Tarlton, and Sally in a casualty clearing station next to the Western Front. Here, again, they must face the inhumanity of war in its many terrible guises - where trench warfare and gas abound. But it is here, too, that the sisters meet the remarkable men with whom they wish to spend the rest of their lives. Inspired by journals of Australian nursing sisters who gave their all to the Great War effort and the men they nursed, The Daughters of Mars is vast in scope yet extraordinarily intimate. This is Keneally at the height of his storytelling powers; a stunning tour de force to join the best of First World War literature, and one that casts a fresh light on the challenges faced by the Australian men and women who voluntarily risked their lives for peace.