The Secret Doctrine, Vol. 1 of 2: The Synthesis of Science, Religion, and Philosophy (Forgotten Books)4 out of 5 $19.80 Buy Now SKU: 1605065455 Categories: Helena Blavatsky, Theosophy Description Description The Secret Doctrine, Vol. 1 of 2: The Synthesis of Science, Religion, and Philosophy (Forgotten Books) Related products The Voice of the Silence4 out of 5 $5.99 Buy Now Isis Unveiled: Both Volumes – A Master-Key to the Mysteries of Ancient and Modern Science and Theology (Illustrated)4 out of 5 $15.99 Buy Now From the Caves and Jungles of Hindostan4 out of 5 $5.99 Buy Now The Voice of the Silence: Being Extracts from The Book of the Golden Precepts (Being Extracts from the Book of the Golden Precepts. First)3 out of 5 $6.17 Buy Now