Robert W. Chambers 
Danger Mark [PDF ebook] 

In the early years of his literary career, author Robert W. Chambers focused on weird horror, earning the admiration of his peers, including the great H.P. Lovecraft. Later he turned his attention to high-society drama and romance, but his treatment of these seemingly trivial topics is freighted with the same intensity and intrigue that characterized his previous work. The Danger Mark follows the ups and downs of an orphaned twin whose hedonistic tendencies may prove to be her downfall.