Balloons Over Richmond — Larry Brasington

Major Ralph Smith, a confederate soldier, injured at the bloody battle of Antietam is no longer able to lead his men into battle, goes undercover at the Port of Baltimore for the Confederate Secret Service to find out what a mysterious Frenchman, Reynard Gastonne is up to. As Smith sets about investigating the Frenchman, he is tailed by Pinkerton Agents on the lookout for Southern spies.