"One of the most thoughtfully crafted works of true crime I've ever seen."-Molly Odintz, CrimeReads senior editor On the morning of July 1, 1800, a surveyor and mapmaker named Cayetano Diaz opened the window of his study in Guatemala City to find a horrific sight: a pair of severed breasts. Offering a meticulously researched and evocative account of the quest to find the perpetrator and understand the motives behind such a brutal act, The Woman on the Windowsill pinpoints the last decade of the eighteenth-century as a watershed moment in Guatemalan history, when the nature of justice changed dramatically. Sylvia Sellers-Garcia reveals how this bizarre and macabre event came with an increased attention to crime that resulted in more forceful policing and reflected important policy decisions not only in Guatemala but throughout the Spanish Empire. This engaging true crime story serves as a backdrop for the broader consideration of the forces shaping Guatemala City at the brink of the modern era.