Broken and crippled from an interstellar war, Nicholas Caddy is augmented and specially trained to pilot the Immortal Armour, an engine of war arriving just in time to face down a threat much more devastating than anything the Colonized Worlds could ever conceive of.

A prequel to the novel Symphony of War and featuring many of the same characters, this novel-length collection features four stories of Caddy's war, with a bonus short story at the end. Set over a decade before the events of Symphony of War: The Polema Campaign.