Celia Sand used ink magic to destroy Profeta's corrupt religion, facing Diavala and winning--but at a cost. Celia's guilt over her best friend's death must be put on the back-burner when she finds Diavala is still alive and has threatened Griffin, the plague doctor. Halcyon Ronnea, the only other who has faced Diavala and lived, may be the key to destroying her--but Halcyon comes with his own dangers, ones involving the ink magic Celia has started to hate.