Vergil in Averno

In the sequel to The Phoenix and the Mirror, Avram Davidson's Vergil Magus series continues as the legendary poet and necromancer Vergil responds to a magical summons from Averno, a city grappling with the decline of its essential natural fires. As the wealthiest yet most polluted city, Averno's magnates are deeply concerned about the consequences of this shift on their industries and environment.