"A spellbinding story about two girls whose friendship is so intense it not only threatens to destroy them, it changes the trajectory of history. Marie Antoine is the charismatic, spoiled daughter of a sugar baron. At 12 years old, with her blond curls and her unparalleled sense of whimsey, she's the leader of all the children in the Golden Mile, an affluent strip of 19th century Montreal. Until one day in 1873, when Sadie Arnett, dark-haired, sly,...