H. P. Blavatsky 
Isis Unveiled 

Isis Unveiled H. P. Blavatsky – Includes the complete Volumes I and II of Isis Unveiled. Blavatsky’s first major work on theosophy, examining religion and science in the light of Western and Oriental ancient wisdom and occult and spiritualistic phenomena.

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Helena Petrovna Blavatsky (Russian: , Yelena Petrovna Blavatskaya, often known as Madame Blavatsky; 12 August [O.S. 31 July] 1831 8 May 1891) was a Russian occultist, philosopher, and author who co-founded the Theosophical Society in 1875. She gained an international following as the leading theoretician of Theosophy, the esoteric religion that the society promoted.