The Spiral has been broken. The Circle has fallen. But beneath the ash, something still breathes.Calla Whitethorne was never meant to carry the fire alone. She lit the Hollow's memory with truth and paid the price in blood. Now, haunted by whispers that echo from beneath the roots of the world, she must descend into the place where the Spiral was born-not to burn it, but to understand it.Beneath the forest lies a forgotten mouth, a memory older than flame, a presence that calls her by a name she doesn't remember giving. As Julian and Thalia fight to keep the Hollow safe above, Calla is pulled into a reckoning far deeper than magic-into a truth that predates Circle, bloodlines, and even the first spell.This time, remembrance alone won't be enough.This time, the fire must become the root.The Thornbound Heart is the stunning conclusion to Jess Rae's critically acclaimed Southern Gothic fantasy series. Lyrical, haunting, and immersive, it's a story of inherited magic, memory as myth, and the dangerous beauty of claiming your own name-even when it was never meant to be spoken aloud.