From the back of the book: This book contains: An entire city, populated entirely by thin bloods Details on the history of Calahorra - the smallest city in Spain - both mortal and kindred A guide to their leadership structure, its rulers, and a selection of the city's residents Story hooks to pull your characters into the plots and schemes of the citizens An introductory story, set during the Roman fiesta of Caluguritanna New systems and a Loresheet, unique to the city