Kilal has returned to the Sunlight Domain after ten years of exile. He is an Arbiter, a race gifted with the ability to carve intricate runes of power into their skin, carvings he must endure to fulfil his oath and defend the realm. But time is running out. An impending invasion of Ash fallen threatens to end his world. Kilal must face this doom, the Heirs of the Promise – a mysterious group that has corrupted his fellow arbiters – and his own fragile sanity.
