The Border keeps infernals at bay. That's the official line.
Infernals are immortal, supernaturally strong, and resilient, as long as they can feed on the energy of living souls. The worst part is, they look human. Peace in the decaying metropolis of Ash is built on the belief that infernals can't slip past the city's defenses, so when Gwyn Hawthorn barely survived an assault by one, most people dismissed her story as a fluke or a lie. The church knows the truth. After nursing her back to health, they trained her to quietly execute the monsters hiding in plain sight.
Now, an...