Three years after her best friend's death Mary went back to London after grieving and became an advisor and translator to Joseph Johnson. Mary became a contributor to Joseph's Analytical Review.
Working hard and being determined to share her beliefs that both men and women should be treated as rational beings and imagines a social order founded on reason. She wrote A Vindication of the Rights of Woman which became very controversial but was her best work.
As time went Mary went with it. After her second child, Mary was born Mary went down in history as a feminist, author, and philosopher with her last words being "Have a little patience, and all will be over".