Annie Besant 
Christian Creed [PDF ebook] 
Or, What it is Blasphemy to Deny

When political activist Annie Besant discovered the spiritual practice known as Theosophy, it changed her life, bestowing upon her a sense of tranquility and purpose. When she came under attack by religious leaders who were suspicious of this unfamiliar faith, Besant fired back with both guns blazing, publishing this scathing but meticulously thorough critique of Christianity.