Five hundred years ago, the eagle-eyed sorcerer-prophets of the Sky God called Windwalkers fought a great war against the monstrous Deeplings-patchwork horrors made of all the things that crawl and rot under the earth. The Windwalkers lost. A dark mist swallowed the world, and the Swamp was born, vast and sunless and full of monsters. The Windwalkers used what remained of their power to raise nine cities above the mist on nine mountains, abandoning those who had betrayed them to the Deeplings. Ever since, the Storm Knights of the Nine Peaks have hunted the people of the Swamp, stamping out the cursed blood magic born of their treachery. Now, something stirs once more in the dark, and change is coming. A swampling woman seeks a way to lead her people into the light. A prince of the Nine Peaks begins to doubt the righteousness of an age-old crusade. An ambitious duke sees a chance to seize the power he has long coveted. Deeplings creep above the mist at night, attacking in numbers unseen since before the Rising. And from the far reaches of the Swamp comes a boy with the eyes of an eagle, who may bring salvation-or doom. The Swampling King is book one of The Windwalker Legacy, an epic fantasy of desperate times, dark magic, and terrifying monsters.