A gripping crime novel that intertwines a criminal investigation with one of the most notorious episodes of the Spanish Civil War: the execution of the Thirteen Roses.

Madrid, 1977. Just as Sub-Inspector Herrero joins the Homicide Division of the Criminal Investigation Brigade of the General Police Corps, he is confronted with the gruesome murder of a widow who owns a jewelry store. Almost simultaneously, a retired man dies in a suspicious hit-and-run. These are only the first tragic deaths in a series of crimes that have just begun. With the help of veteran Inspector Pineda, Sub-Inspector Herrero soon concludes that the murders are connected to a notorious episode from the Spanish Civil War: the execution of a group of women known as the Thirteen Roses in 1939.

Iñaki Biggi returns to the genre that established him as a writer, with novels like The Stradivarius Formula, presenting a new fast-paced and suspenseful crime story that blends a criminal investigation with one of the most infamous events of the Spanish Civil War: the execution of the Thirteen Roses.