Shadow and Steel - Urban Dragon, #2

Just when Arkay and Rosario are finally moving forward with their lives, an old friend begs them to come back to where they started. Homeless people are disappearing into the ruins of an abandoned factory, lured by something supernatural. It's up to Rosario to tame it- or Arkay to kill it- before it takes another victim. But evil lurks in every shadow, and they soon discover that they're not the only ones hunting the beast.