DARKEST NIGHTINGALE Deep in London's Scotland Yard sits an evidence room dedicated to the greatest mysteries of British history. In this "Black Museum" sits a misshapen hunk of lead--two bullets fused together--the key to the untold story of a wartime encounter between Florence Nightingale, the mother of modern nursing, and a supernatural Man in Grey. The record books show Florence fought for compassion as empires' petty rivalries threatened to destroy...