Isis and the Mahatmas: A Reply is a book written by William Q. Judge, a prominent figure in the Theosophical Society. The book is a response to the claims made in the book Isis Unveiled by Helena Petrovna Blavatsky, the founder of the Theosophical Society. In Isis Unveiled, Blavatsky claimed that she had been in contact with a group of spiritual masters known as the Mahatmas, who had imparted to her secret knowledge and wisdom.Judge's book challenges...