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 encounters a girl with abilities both strange and deadly. When she attempts to flee, Abel must turn against his own in order to save her life.

Abel's search for the "star" has tangled him in the web of war. Sister Esther seeks vengeance for the death of her mentor and has gone to great lengths in her quest to eliminate the one ultimately responsible.

The Rosen Kreuz has surfaced again. Fueling the personal revenge of others for their own evil ends, the nefarious order could plunge both races back into the dark days of Armageddon.