Before They Are Hanged - Joe Abercrombie
Bitter and merciless war is coming to the frozen north. It's bloody and dangerous and the Union army, split by politics and hamstrung by incompetence, is utterly unprepared for the slaughter that's coming. Lacking experience, training, and in some cases even weapons the army is scarcely equipped to repel Bethod's scouts, let alone the cream of his forces. And to the east a small band of malefactors travel to the edge of the world to reclaim a device from history - a Seed, hidden for generations - with tremendous destructive potential. A device which could put a end to war, to the army of Eaters in the South, to the invasion of Shanka from the North - but only if it can be found, and only if its power can be controlled . . .