1050 AD: Rob Cole returns to England to bring the medical light of the Orient to his countrymen. But he fails because of the intrigues of the established London doctors, who feel threatened by the new knowledge. And it is not only the human body that is full of seemingly impenetrable secrets, the soul also holds its own mysteries.

In 11th century Persia, a young Christian boy named Rob travels to Isfahan to study medicine under the renowned Persian physician, Ibn Sina. Despite facing many challenges, including religious persecution and the outbreak of the Black Death, Rob becomes a skilled physician and gains the respect of his colleagues. Along the way, he also forms strong friendships and experiences love. His journey takes him through various adventures and trials as he navigates the world of medieval medicine and the clash of cultures.