The Well of Ascension

From #1 New York Times bestselling author Brandon Sanderson, the Mistborn series is a heist story of political intrigue and magical, martial-arts action.
The impossible has been accomplished. The Lord Ruler — the man who claimed to be god incarnate and brutally ruled the world for a thousand years — has been vanquished. But Kelsier, the hero who masterminded that triumph, is dead too, and now the awesome task of building a new world has been left to his young protégé, Vin, the former street urchin who is now the most powerful Mistborn in the land, and to the idealistic young nobleman she loves.
As Kelsier's protégé and slayer of the Lord Ruler she is now venerated by a budding new religion, a distinction that makes her intensely uncomfortable. Even more worrying, the mists have begun behaving strangely since the Lord Ruler died, and seem to harbor a strange vaporous entity that haunts her.
Stopping assassins may keep Vin's Mistborn skills sharp, but it's the least of her problems. Luthadel, the largest city of the former empire, doesn't run itself, and Vin and the other members of Kelsier's crew, who lead the revolution, must learn a whole new set of practical and political skills to help. It certainly won't get easier with three armies – one of them composed of ferocious giants – now vying to conquer the city, and no sign of the Lord Ruler's hidden cache of atium, the rarest and most powerful allomantic metal.
As the siege of Luthadel tightens, an ancient legend seems to offer a glimmer of hope. But even if it really exists, no one knows where to find the Well of Ascension or what manner of power it bestows.
Other Tor books by Brandon Sanderson
The Cosmere

The Stormlight Archive
The Way of Kings
Words of Radiance
Edgedancer (Novella)
Oathbringer
The Mistborn trilogy
Mistborn: The Final Empire
The Well of Ascension
The Hero of Ages
Mistborn: The Wax and Wayne series
Alloy of Law
Shadows of Self
Bands of Mourning
Collection
Arcanum Unbounded
Other Cosmere novels
Elantris
Warbreaker
The Alcatraz vs. the Evil Librarians series
Alcatraz vs. the Evil Librarians
The Scrivener's Bones
The Knights of Crystallia
The Shattered Lens
The Dark Talent
The Rithmatist series
The Rithmatist
Other books by Brandon Sanderson
The Reckoners
Steelheart
Firefight
Calamity