When Steel Ranger Scribe Quillwright and her unit are attacked while on a Stable-delving mission and she is left for dead, she finds herself stranded in a poisonous, flooded, and decaying wasteland: Mulisiana. Seven hundred miles from home, she must brave treacherous swamps, combat radioactive monstrosities out of the darkest of nightmares, and survive a brewing storm of factions on her journey north. From the ruins of Neigh Orleans, raiders, tribals, and machines are marching towards war. For there is movement within the shadows of the Equestrian Institute of Technology; the days to come will not only transform Equestria, but redefine ponykind itself.