The Final Empire

Kelsier's scheme to topple the Final Empire reaches its climax when his crew's plan to spark a noble house war and smuggle in a skaa army collapses into chaos: most of the recruited soldiers are slaughtered attacking a garrison, Marsh disappears after being caught spying, and Lord Renoux's household is seized by the Canton of Inquisition. In the ensuing rescue attempt, Kelsier's crew kills a Steel Inquisitor, but Kelsier himself is confronted and killed by the Lord Ruler in Luthadel's city square. This apparent catastrophe turns out to be exactly what Kelsier intended: his death transforms him into a martyr and symbol of hope for the superstitious skaa, who rise up en masse and, with the help of the army he had smuggled into the city, overthrow Luthadel's ruling structure from within.

Before dying, Kelsier had been trying to activate a mysterious Eleventh Metal rumored to reveal the Lord Ruler's weakness, and passes this unfinished task to Vin. Captured and tortured by the Canton of Inquisition, Vin is freed by her Terrisman mentor Sazed, who uses his Feruchemy to help her recover her strength and her metals. Meanwhile Marsh, who had actually been captured and forcibly transformed into a Steel Inquisitor, turns against his captors and kills several of his fellow Inquisitors before being subdued by the Lord Ruler himself.

Armed with the Eleventh Metal, Vin confronts the Lord Ruler directly and learns the truth behind the empire's founding myth: he is not the legendary Hero of Ages who saved the world a thousand years ago, but Rashek, a Terrisman who murdered the true Hero and usurped his place, combining Allomancy and Feruchemy to grant himself unnatural strength, healing, and eternal youth via a set of feruchemical bracelets. In a brutal fight Vin is nearly killed, but with guidance from the Eleventh Metal and unexpected aid from the mists themselves, she manages to strip the Lord Ruler of his bracelets, causing him to age rapidly and lose his invulnerability. She kills him with a spear. His final words are a cryptic, ominous warning that some greater doom is coming.

With the Lord Ruler dead, the thousand-year Final Empire collapses, throwing Luthadel into upheaval. Elend Venture, the idealistic nobleman Vin has fallen in love with over the course of the book, steps in to prevent total societal breakdown, uniting the city under a new system of government built on the democratic ideals he and his friends had long discussed. The novel ends with the empire's old order shattered, a fragile new government forming in Luthadel under Elend, and the Lord Ruler's parting warning left unresolved.

By the end of The Final Empire, the thousand-year reign of the Lord Ruler over the Final Empire has been ended. Vin, a former street thief revealed early on to be a rare Mistborn (an Allomancer with access to all metal-based powers), was recruited by the crew of Kelsier, himself a Mistborn and escaped prisoner of the brutal Pits of Hathsin. Kelsier trained Vin and used her, disguised as the noblewoman Valette Renoux, to infiltrate Luthadel's aristocracy, where she fell in love with Elend Venture, heir to House Venture and a nobleman who privately favors more democratic, humane governance.

Kelsier's larger plan was to destabilize Luthadel by provoking a war among the noble houses and smuggling in an army of skaa rebels to seize the city, all as a prelude to striking at the Lord Ruler's economic and political power. The plan went badly wrong in places — most of the recruited soldiers were massacred, and Kelsier's ally Lord Renoux was captured — but Kelsier was killed by the Lord Ruler in a public confrontation that, by design, turned him into a martyr. His death ignited a mass skaa uprising that, combined with the surviving smuggled army, overthrew the city's power structure.

Vin picked up where Kelsier left off, using a mysterious Eleventh Metal he had been investigating. After being captured and tortured by the Canton of Inquisition, she was freed by Sazed, a Terrisman Feruchemist who has become her closest ally and mentor. Marsh, Kelsier's brother, was revealed to have been forcibly turned into a Steel Inquisitor; he turned against his captors before being subdued by the Lord Ruler. Vin then confronted the Lord Ruler directly and discovered the empire's central secret: he is not the true Hero of Ages who saved the world a thousand years ago, but a usurper named Rashek who murdered the real Hero and stole his power, combining Allomancy and Feruchemy (via magical bracelets) to grant himself immortality. Vin stripped him of these bracelets, causing him to age instantly, and killed him. His last words were an unexplained, ominous warning of a coming "great doom."

With the Lord Ruler dead and the Final Empire's central authority destroyed, Luthadel was left in chaos. Elend Venture stepped up to prevent total collapse, working to unite the city under a new government based on the democratic principles he had long favored. As the next book begins, readers should know: Vin and Elend are romantically involved and he is now a political leader in the power vacuum left by the Lord Ruler's death; Sazed and Marsh (transformed but alive) survived and remain significant allies; the true nature of the ancient prophecy of the "Hero of Ages" and the deception behind the Lord Ruler's founding myth is now known to Vin's group but not necessarily the wider world; and the Lord Ruler's final cryptic warning of a coming doom has not been explained, leaving open the question of what larger threat the Lord Ruler's thousand-year rule may have been suppressing or holding at bay.