Una apasionante historia de esp as y, al mismo tiempo, un profundo examen del matrimonio basado en secretos y mentiras. En el colegio, Berta Isla decidi que se casar a con Tom s Nevinson, el apuesto chico de su clase, medio espa ol medio ingl s, con un extraordinario don de lenguas. Pero cuando Tom s regresa a Madrid tras sus estudios en Oxford, es un hombre diferente. All ha sido reclutado por un agente de los servicios secretos brit nicos, desencadenando as una serie de acontecimientos que afectar n la vida que ambos hab an planeado. Con su inigualable modo de explorar los m s oscuros rincones del ser humano, Mar as sumerge al lector en el creciente abismo que se abre lentamente entre Berta y Tom s y las decisiones que cambiar n irremediablemente a ambos. Berta Isla es una novela sobre el amor y la verdad, sobre el miedo y los secretos, sobre las identidades ocultas y el destino que decidimos asumir en nuestra vida. ENGLISH DESCRIPTION From award-winning, internationally best-selling Spanish writer, author of The Infatuations, comes a gripping novel of intrigue and missed chances--at once a spy story and a profound examination of a marriage founded on secrets and lies. When Berta Isla was a schoolgirl, she decided she would marry Tom s Nevinson--the dashing half-Spanish, half-English boy in her class with an extraordinary gift for languages. But when Tom s returns to Madrid from his studies at Oxford, he is a changed man. Unbeknownst to her, he has been approached by an agent from the British intelligence services, and he has unwittingly set in motion events that will derail forever the life they had planned. With peerless insight into the most shadowed corners of the human soul, Mar as plunges the reader into the growing chasm between Berta and Tom s and the decisions that irreversibly change the course of the couple's fate. Berta Isla is a novel of love and truth, fear and secrecy, buried identities, and the destinies we bring upon ourselves.