Book excerpt: Dorothy Wellesley was a poet, gardener, traveller and heiress; she was also bisexual and a rebel. She became the lover of Vita Sackville-West, wrecking her marriage to the Duke of Wellington. She was the intimate friend of W.B. Yeats in his final years. On the fringes of the Bloomsbury Group, she had a unique view of these iconic writers and artists. The biography draws on unpublished material, including private Wellesley family papers and hitherto unknown source materials. This is a riveting story of a complex and fascinating woman.