Marie Corelli 
Sorrows of Satan [PDF ebook] 
Or the Strange Experience of One Geoffrey Tempest, Millionaire

Geoffrey Tempest is a destitute author on the brink of financial ruin who suddenly finds himself awash in money, friends, and influence — thanks in large part to his enigmatic and charming new acquaintance Lucio. Despite the fact that many of his long-time pals are suspicious of Lucio, Tempest doesn’t question Lucio’s motives or largesse. Just who is this mysterious stranger who has turned Tempest’s world upside-down?