Leith, king of the magic-haunted realm of Enchantment's Edge, finds himself stranded with his two infant children in the empty blue world of the mysterious entity Orbus. Meanwhile, in Enchantment's Edge itself, Orbus has revealed the truth to Issul, Leith's young queen: her husband and children are trapped - and Orbus knows of no way to release them.
Issul and Orbus must undertake a perilous quest into the mysterious land of Enchantment to find a crucial lost artefact, the Soul of the Orb. This represents the one slim hope of saving the kingdom from the brutal inhuman warrior race, the Krai, and their god. But ahead of Issul lie ambush, escape, capture - and a growing bond with Shenwolf, the young soldier who is not entirely what he seems.
Meanwhile, Leith is on a dangerous mission of his own. He must travel across an unutterably alien terrain to the Death Abyss, there to seek out and slay an awesomely powerful being before it destroys the world. And Leith's children . . .