"Avenging Angel: John Brown's Raid on Harpers Ferry 1859"

Many books have been written about the how, why, and meaning of John Brown's failed attempt to provoke a slave uprising in northern Virginia, but Ron Field's Avenging Angel: John Brown's Raid on Harpers Ferry 1859 (Osprey Publishing, 2012) has a very distinct contextual focus on the raid as paramilitary operation, unsurprising given its placement within Osprey's Raid series. The background is