Patronuses are one of the most difficult and powerful defensive charms a witch or wizard can conjure. This book gives a behind-the-scenes look at how this magic was imagined, designed, and brought to life for the Harry Potter films. Readers will get a look at how the filmmakers crafted each Patronus's ethereal appearance, how Harry Potter's stag saved him from the Dementors, and how the mysterious doe led him to the Sword of Gryffindor. Finally, participate in the magic by building your own stag Patronus with the included do-it-yourself wood model, and paint it any way you like!