The Lifesavers: The Trailblazers of the Second World War who took Blood into Battle, is out now, published by Penguin-Viking.

“A story destined to be told. A fascinating history of blood for the front line. Humbling, awe inspiring and life affirming” (Sue Black, author of All That Remains)

“The dazzling story of the heroic, extraordinary efforts by small groups of doctors to overcome every impediment to achieve a remarkable aim: to save lives by introducing blood transfusions on the battlefield . . . This account by a master historian is fresh and vital, history at its best.” (Rob Lyman, author of Victory to Defeat)

“Bailey brings this story alive . . . riveting” (Anne Sebba, Spectator)