Every sorcerer (or witch) who has a wand in his hand has much more power than we can imagine. With the right spell or potion, they can create love, travel through time, change their physical form, and even end their lives. In the wrong hands, power and magic can turn black, deadly, or self-destructive. Lord Voldemort showed us this: he desired power so fiercely that he tore apart his very soul and ended up losing everything that made him human. He is the ultimate villain, motivated solely by his ice-cold desire for power and destruction. Granted, not many could match Voldemort's evil intent (though Bellatrix Lestrange and Dolores Umbridge tried), but there are undoubtedly other characters who are drawn to power. This volume collects notes from J.K. Rowling about power and politics... And, as a dessert, about poltergeists.