Every time a lad came fowling on the St Kilda stacs, he went home less of a boy and more of a man. If he went home at all, that is. In the summer of 1727, a group of men and boys are put ashore on a remote sea stac to harvest birds for food. No one returns to collect them. Why? Surely nothing but the end of the world can explain why they have been abandoned to endure storms, starvation, and terror. And how can they survive, housed in stone and imprisoned on every side by the ocean?