The Bluecoats - Volume 12 - The David

Even as the sea blockade by the Union Navy slowly strangles the South, the
picket ships begin to mysteriously blow up one after another. Lincoln, worried
that the war could stretch on too long if the Rebels are resupplied, orders
that the Confederates’ secret weapon be identified. That means sending spies
to Charleston, though, in the heart of the enemy’s territory. And who will be
the two unlucky fools the brass entrusts with such a dangerous mission … ?