Tawas, Michigan, is all abuzz about the Civil War exhibit that's about to open at the Iosco County Historical Museum. If only Agnes and Eleanor weren't at odds with one another. That is, until Agnes, armed with her ghostly partner Caroline, hatch a plan. The only problem is that a body is found at the museum and two Civil War soldiers appear from their paintings and race off on their ghostly steeds. The good news is the sleuths are back at it, but will they be able to solve the murder while chasing down the ghostly soldiers?