In the Valley of the Clouds, oaths are sacred. Until they're shattered.

Elrich was born into a dream of unity-one flame to bind the clans of Serawyn. But when betrayal bleeds across sacred stone and his father falls to kinblades, Elrich is left with ash, ruin, and a name whispered like prophecy.

Now, hunted by enemies and haunted by the Spiral Flame, he must gather the broken-warriors, mystics, and outcasts-and forge something new from the wreckage of trust.

Yet ancient powers stir beneath the roots of the world. A boy with no name carries memories not his own. Forgotten pacts awaken in the blood of the land. And in the misted dark, a blade returns-a traitor once thought dead, walking the spiral path once more.

When oaths break, the flame remembers. And the Valley will burn or rise anew.

Fortress Lost is the sweeping first volume of The Spiral Flame Saga-a lyrical, character-driven epic for fans of The Broken Earth, The Poppy War, and The Witcher.