Thousands of Confederate soldiers died in Chicago during the Civil War, not from battle wounds, but from disease, starvation, and torture as POWs in a military prison three miles from the Chicago Loop. Initially treated as a curiosity, attitudes changed when newspapers reported the deaths of Union soldiers on southern battlefields. As the prison population swelled, deadly diseases--smallpox, dysentery, and pneumonia--quickly spread through Camp Douglas. Starving prisoners caught stealing from garbage dumps were tortured or shot. Fearing a prisoner revolt, a military official declared martial law in Chicago, and civilians, including a Chicago mayor and his family, were arrested, tried, and sentenced by a military court. At the end of the Civil War, Camp Douglas closed, its buildings were demolished, and records were lost or destroyed. The exact number of dead is unknown; however, 6,000 Confederate soldiers incarcerated at Camp Douglas are buried among mayors and gangsters in a South Side cemetery. Camp Douglas: Chicago's Civil War Prison explores a long-forgotten chapter of American history, clouded in mystery and largely forgotten.