The complete duology!

New Rome perches upon the shores of the Thamis River, and in its soot-stained depths a teeming mass of humanity lives under the iron fist of an Empire that never fell to Vandals or Christianity. In the shadows, assassins congregate and secret societies bloom—the Priory, dedicated to worship of the blasphemous, criminal Nailed God, and the Hellions, thieves and murderers whose aim is mere freedom.

Or so the Hellions say...

Contains HELL'S ACRE and ROOK'S ROSE.