Choque de reyes (Canción de hielo y fuego #2) by George R. R. Martin.

Set in a harsh world where winter looms and power is the ultimate prize, A Clash of Kings continues the grand saga of wandering crowns and shattered alliances. As multiple claimants lay siege to the Iron Throne of the Seven Kingdoms, the land of Westeros fractures into war. At Storm’s End and Dragonstone, the struggle for legitimacy intensifies. Meanwhile, in the east, Daenerys Targaryen begins her journey of reclaiming a legacy that seemed lost.
This second volume of the saga expands the scope of the story: from the bloody battlefields of the Westerland houses, to the icy confines of the Wall where ancient forces stir, and to the exotic lands across the Narrow Sea. Political intrigue deepens, ancient magic begins to stir, and the stakes become deadly. Characters new and old are tested by ambition, betrayal, hope, and vengeance.
Readers will encounter fierce sieges such as the Battle of Blackwater, shifting loyalties among exceptional characters like Tyrion Lannister and Stannis Baratheon, and the mysterious path of Bran Stark beyond the North. Through richly woven narrative and unexpected twists, the author delivers both spectacle and depth.
Ideal for fans of grand-scale fantasy tales, this edition invites both those who followed the first volume and newcomers seeking to immerse themselves in a world where no throne is safe, no character invulnerable, and every decision can tip kingdoms into ruin or ascendancy. The war has only begun—place your claim now.