Helena Petrovna Blavatsky (1831-1891), was a Russian philosopher, and occultist. In 1875, Blavatsky, Henry Steel Olcott, and William Quan Judge established a research and publishing institute called the Theosophical Society. Her extensive research into the spiritual traditions of the world led to the publication of what is now considered her magnum opus, The Secret Doctrine, which organizes the essence of these teachings into a comprehensive synthesis. Blavatsky's other works include Isis Unveiled, The Key to Theosophy and The Voice of the Silence. In this book: Nightmare Tales From the Caves and Jungles of Hindostan