Yet even with these advances, the magics of Allomancy and Feruchemy continue to play a role in this reborn world. Out in the frontier lands known as the Roughs, they are crucial tools for those attempting to establish order and justice. One is Waxillium Ladrian, a rare Twinborn who can Push on metals with his Allomancy and use Feruchemy to become lighter or heavier at will. After twenty years in the Roughs, Wax must now put away his guns and assume the duties incumbent upon the head of a noble house--until he learns the hard way that the mansions and elegant tree-lined streets of the city can be even more dangerous than the dusty plains of the Roughs.