Few figures in the history of spirituality have provoked as much admiration and controversy as Helena Petrovna Blavatsky. To her critics, she was a charlatan. To her followers, she was a messenger of ancient wisdom. To historians, she is one of the most influential founders of modern esotericism. Through the Theosophical Society, she helped bring ideas such as karma and reincarnation to a wide Western audience and shaped spiritual movements that continue today. Her life was as extraordinary as her teachings: full of travel, mystery, books of immense length and fierce debates. A Restless Life Helena von Hahn was born in 1831 in Yekaterinoslav, in the Russian Empire, today the city of Dnipro in Ukraine. Her family belonged to the aristocracy. As a young woman, she married Nikifor Blavatsky, a much older official, but soon left him and began years of wandering. According to her own accounts, she traveled widely through Europe, the Middle East, India and the Americas, and spent time...