A fascinating, well-written and absorbing biography of Mary Shelley, it’s equally about her famous husband Percy Bysshe Shelley and the unconventional lives they led -- for the times they lived in. The personal and financial challenges they faced or, quite frankly, brought upon themselves were incredible and it’s a wonder they survived despite the constant creditors at their door. Brilliant in her own right, Mary’s intellectual capacity was equal to or superior than her husband’s and she was a successful writer in her own right. Her love and understanding of the complex personality that was Percy Bysshe Shelley helped ground and encourage him as a writer and poet. Bertram also vividly captures the personalities of Mary, her father, and the rest of the family and the demands they put on her. A woman who knew her own mind, she loved long walks, nature, literary discussion, reading and writing and she and her husband were soulmates in that regard. The biography is extremely well done – it was interesting, engaging, well researched and a page-turner to boot – a great read.