La biblioteca de las lectoras valientes

East End, London, 1944. Clara Button is not just any librarian. While the world remains at war, Clara has created the country's only underground library, built on the tracks of the disused Bethnal Green tube station. Down there thrives a secret community with thousands of bunk beds, a nursery, a café and a theater that offer shelter, warmth and distraction from the bombs falling outside. Along with her glamorous best friend and assistant, Ruby Munroe, Clara ensures that the library is the beating heart of life underground. But as the war drags on, the friends' determination to stay strong in the face of adversity is tested when the lives of their loved ones are in danger.