The airship Tristan is hijacked by a member of the Fleurs du Mal who demands the release of his comrades held in Vatican captivity. But one passenger stands in his way - Abel Nightroad.

Abel and Asta plan to plead Ion's case to the Imperial Council, and Ion and Esther search the city for answers. But when their trail leads to further intrigue, betrayal comes from beyond the grave.

Allies and enemies, both human and vampire, work together against the enemy of the world - the Contra Mundi. Resurrected from the grave, not even death can keep Abel Nightroad from his fate.