La edición actualizada de la gran biografía de Juan Carlos I.>El segundo misterio estriba en cómo un príncipe procedente de una familia con tradiciones autoritarias, obligado a actuar dentro de unas «normas» franquistas, y educado para ser la piedra angular de un complejo plan para la continuidad de la dictadura, se comprometió firmemente con la democracia. Paul Preston, uno de los historiadores que más luz ha arrojado sobre la historia de España en el siglo XX, ha actualizado su gran obra sobre el rey Juan Carlos, en la que aborda las conflictivas relaciones con su padre, su educación encaminada a perpetuar el régimen de Franco, su apuesta por la democracia, su enfrentamiento al golpismo hasta llegar a la plena consolidación de la monarquía parlamentaria y la evolución de la monarquía desde entonces. El resultado es un libro riguroso y escrito con una prosa vibrante que nos ofrece un retrato humano y político del hombre que se propuso ser el «Rey de todos los españoles». ENGLISH DESCRIPTION The updated edition of Juan Carlos I's great biography. There are two main mysteries in the life of Juan Carlos: one is personal, the other political. How do we explain the apparent serenity with which Juan Carlos accepted that his father delivered him--for all intents and purposes, bound hand and foot--to Franco's regime? In a normal family, this act would have been considered a kind of cruelty or, at the very least, an unscrupulous irresponsibility. But a royal family is not "normal, " and the decision to send Juan Carlos to Spain answered a "superior" dynastic logic. The second mystery stems from how a prince from a family with an authoritarian history, forced to act within Francoist "norm, " and educated to be cornerstone in a complex plan to ensure the continuity of the dictatorship, firmly committed himself to democracy? Paul Preston, one of the historians who has shed more light on the history of Spain in the twentieth century, has updated his great work on King Juan Carlos, where he addresses the troubled relationship with his father, his education focused on perpetuating Franco's regime, his bet on democracy, his battle against a tendency to coup until reaching the full consolidation of parliamentary monarchy, and the evolution of monarchy since. The result is a rigorous book, written with a vibrant prose that gives us a human and political tale of the man who set out to be "King to all Spaniards.