Barnabas, a minor demon, and Kalyndriel, an avenging angel, find themselves reluctantly working together as a mysterious evil disrupts the passage of souls to the afterlife. Senior demons and angels seem to be involved in an unprecedented conspiracy to bring about a final Armageddon.
Good characters and a touch of humour make this dark fantasy very readable. The writing is decent and well edited throughout. The theology is reminiscent of Good Omens, in that God remains absent (and ineffable), and the demons and angels are fairly traditional.
No romance, no religion.