A hero appears in Galician lands to seek revenge for Viking incursions on the peninsula. The first novel  which reveals this episode to us through a story filled with adventures as well as rigorous historical documentation. At the height of the Reconquest, the Norsemen invaded Galicia to avail themselves of the treasures of Santiago de Compostela, the jewel of Christianity. Nine year old Assur will set out in search of his family until he is imprisoned by the very invaders who razed his village and killed his loved ones. Along with the Norsemen he will travel to the most recondite places in medieval Europe, ply the icy seas, conquer lands and discover love.  But the desire to reclaim his family will lead him to return to Galicia.