Lucy E Hawksmoor returns in a tortuous, breathtaking adventure. She accepts the challenging task given to her by the Real Academia of discovering what happened to the head of the great artist, Francisco Goya, not realising the dangerous path she is taking - for others are watching her every move.

A man with multiple personalities, some deadly, some deranged escapes from a secure hospital. A violent killer walks the streets of Madrid. Headless bodies are turning up across the city and the police have absolutely no leads. Lucy finds herself on a collision course with a man who thinks he is dead and with darker forces who want the skulls for their own twisted purposes.

Her most dangerous quest yet takes her below the streets into the ancient tunnels of the Spanish capital where the one man she is forced to trust is the one man who may well turn out to be her nemesis.