To some, Lily was just a beautiful little girl. To others, she was a freakish albino who ate live chickens in a freak show. Charles Darwin called her his impossible girl and tried in vain to classify her. P. T. Barnum called her his angel and tried to take advantage of her. But the creature Barnum thought to turn into a money-making feature attraction is neither girl nor angel. She is something other, a species of unimaginable abilities,...