The first novel in a series set in modern Britain still ruled by the Roman Empire. Technology is advanced, but different from anything we could recognize. Much of the island is still thickly forested, the Roman towns linked by high-speed tubular transportation systems.

The fourth novel in a series about an alternative world where the Roman Empire still rules. Rome has decreed that Brittania's forests must burn so that the Empire's flocks may graze. However, as the imperatives of Rome meet the wild magic of an older world, Rome's dominion is finally challenged.