The Reacher, helped by King Dalverious, finally possesses all the pieces required to reconstruct the Staff of the Din, the one instrument that will allow him to gain corporeal form, cross into the Whist and seize the lives of all who live there. Back in Illguard, Bet and her crew set off in search of Fealist-Marsh, the Omia Temporian, the only being strong enough to oppose the Reacher and his dark forces. Moth, the Ancient One, can show them the way. But what must they sacrifice in order to find the Caves of Moth? And once they do…how many of them can make it out alive?