Elemental magic courses through the veins of vast empires. The Grand Guild oversees its network of dark brotherhoods. In the Known World, gods and goddesses are as tangible as the people who worship them. Yet in this land rich in legend and wonder, there exists a mystery beyond all others: the secret of Ji. After catching a fleeting glimpse of another world, the last heirs of the Ji emissaries search for a century-old journal that promises to unravel the world's greatest enigma.