There is no way for me to summarize it because it was too intricate and complex. But here is the prologue (that's what hooked me): "Elantris was beautiful, once. It was called the city of the gods: a place of power, radiance, and magic. Visitors say that the very stones glowed with an inner light, and that the city contained wondrous arcane marvels. At night, Elantris shone like a great silvery fire, visible even from a great distance.
Yet, as magnificent as Elantris was, its inhabitants were more so. Their hair a brilliant white, their skin an almost metallic silver, the Elantrians seemed to shine like the city itself. Legends claim that they were immortal, or at least nearly so. Their bodies healed quickly, and they were blessed with great strength, insight, and speed. They could perform magics with a bare wave of the hand; men visited Elantris from all across Opelon to receive Elantrian healings, food, or wisdom. They were divinities.
And anyone could become one.
The Shaod, it was called. The Transformation. It struck randomly—usually at night, during the mysterious hours when life slowed to rest. The Shaod could take beggar, craftsman, nobleman, or warrior. When it came, the fortunate person's life ended and began anew; he would discard his old, mundane existence, and move to Elantris. Elantris, where he could live in bliss, rule in wisdom, and be worshipped for eternity.
Eternity ended ten years ago."
I highly recommend this book to everyone.