Welcome to Scion. No safer place. The year is 2059. For two centuries, the Republic of Scion has led an oppressive campaign against unnaturalness in Europe. In London, Paige Mahoney holds a high rank in the criminal underworld. The right hand of the ruthless White Binder, Paige is a dreamwalker, a rare and formidable kind of clairvoyant. Under Scion law, she commits treason simply by breathing. When Paige is arrested for murder, she meets the mysterious founders of Scion, who have designs on her uncommon abilities. If she is to survive and escape, Paige must use every skill at her disposal – and put her trust in someone who ought to be her enemy.

In the house of Helios, god of the sun and mightiest of the Titans, a daughter is born. But Circe is a strange child--neither powerful like her father nor viciously alluring like her mother. Turning to the world of mortals for companionship, she discovers that she does possess power: the power of witchcraft, which can transform rivals into monsters and menace the gods themselves. Threatened, Zeus banishes her to a deserted island, where she hones her occult craft, tames wild beasts, and crosses paths with many of the most famous figures in all of mythology, including the Minotaur, Daedalus and his doomed son Icarus, the murderous Medea, and, of course, wily Odysseus. But there is danger, too, for a woman who stands alone, and Circe unwittingly draws the wrath of both men and gods, ultimately finding herself pitted against one of the most terrifying and vengeful of the Olympians. To protect what she loves most, Circe must summon all her strength and choose, once and for all, whether she belongs with the gods she is born from or with the mortals she has come to love.

Paige Mahoney has escaped the brutal prison camp of Sheol I, but her problems have only just begun: many of the survivors are missing and she is the most wanted person in London... As Scion turns its all-seeing eye on the dreamwalker, the mime-lords and mime-queens of the city's gangs are invited to a rare meeting of the Unnatural Assembly. Jaxon Hall and his Seven Seals prepare to take centre stage, but there are bitter fault lines running through the clairvoyant community and dark secrets around every corner. Then the Rephaim begin crawling out from the shadows. Paige must keep moving, from Seven Dials to Grub Street to the secret catacombs of Camden, until the fate of the underworld can be decided.