History remembers Guinevere’s sin, but it was Arthur who transgressed first. Forced into marriage, Guinevere finds herself High Queen. Over time, their love deepens and she becomes Arthur’s top strategist. But when Guinevere is feared dead, Arthur installs a new woman in her place, one who will poison his affections, threatening Guinevere’s fragile sanity and driving her into the arms of her champion. And though the Grail promises peace, that can be just as dangerous as war.