What would happen if there were proof that Spain was already a united country in the 19th century? What would a radical foundation be capable of doing to preserve the historical thesis of Basque nationalism? This manuscript could completely transform the current political panorama.

A mystery that goes back to the Medieval era, a line of warriors which has survived into the 21st century and continues to suffer under an ancestral stigma, and a discovery that confirms something which someone in Euskadi (the Basque Country) wants to hide: the ancient link between the Basque Country and Castille and the origin of Spain.

Both the medieval story and that of the doctor, a modern descendant of those warriors, form a fast-paced historical thriller.