A Subtler Magic

England, 1940. Every night, the bombs fall.

In London, Vivian drives her ambulance through the burning streets, tending to the wounded and dying with a steadiness her colleagues mistake for courage. It is not courage. It is duty - the only language she has ever been taught to speak.

In Oxford, Dame Beryl stands alone in the cupola of the Radcliffe Camera and holds the magical defenses of the British Isles together by sheer force of will. Her body is failing. Her grief is vast. She has given everything to the protection of her country and her people, and she will give whatever remains.

These two women have circled each other for years - mentor and heir, guardian and charge, each convinced that love and duty cannot coexist. But when a long-buried secret surfaces from the night that made Vivian an orphan, everything either woman believes about herself, about the other, and about the nature of magic begins to fracture.

Set against the thunder of the Blitz and the ancient landscape of Arthurian Britain, A Subtler Magic is a novel about the cost of devotion, the courage it takes to remember, and the quiet, irresistible power of the one spell neither woman ever learned to cast.

For readers of The Essex Serpent and Susanna Clarke.