Chapter 2 examines the largely overlooked writings of nineteenth-century clinicians, scientists, lawyers, and jurists who actually called for a third sex to be added alongside the ranks of “male” and “female” because, quite plainly, there were individuals for whom no “true sex” could be identified. The inflexibility of the Napoleonic Code, which required that all infants be sexed as either male or female at birth, was challenged by doctors and legal forensics experts who believed either that the Code was out of step with scientific progress, or that it did not do enough to protect citizens from “hermaphrodites.” In sensationalized court cases that riveted domestic and international audiences – both scientific and lay – doctors and jurists struggled to reconcile cases of “doubtful sex” with scientific evidence, social welfare, and the Code itself. Intersex people came into conflict with the law from the moment of their birth. Jurisconsults enthusiastically contradicted one another about the veracity of sex determinations, while influential men labored to revise laws regarding birth certificates, marriage, divorce, and inheritance. Ultimately, the only party remaining silent on “hermaphrodism” was the Code itself, ensuring that a legal blind spot only increased the visibility of those it tried not to see.