Petyr “Littlefinger” Baelish: The Talented Mr. Ripley by Patricia Highsmith
Littlefinger is yet another brilliant Machiavellian schemer, but he stands out as the only high lord who gained power by sheer will and wit. Born the son of a very minor lord, Baelish both envies and hates the higher-born nobles. By the end of season 5, he has risen up to control one of the largest castles, the haunted Harrrenhal, and been named Lord Protector of the Vale. If you love a rags-to-riches-by-way-of-ruthless-ambition story, there is no better examples in literature than Patricia Highsmith's brilliant creation, Tom Ripley.