At Terminal 4, the most dangerous creatures in existence aren't stopped by holy water, silver bullets, or ancient spells.

They're stopped by paperwork.

Evelyn Vance is a senior supernatural immigration adjudicator with one simple rule: everyone follows the regulations. It doesn't matter if you're a vampire, a hellhound, a rogue spirit—or a terrifying Lord of the Seventh Circle offering enough soul currency to buy a city.

If your documents aren't in order, you're not getting a visa.

Then Lord Malakor Draven arrives with an incomplete application, a history of violence, and absolutely no intention of waiting in line.

But when Evelyn discovers that Malakor's clearance was forged using the credentials of a dead government official, a routine immigration violation becomes something far more sinister. Someone inside the Department of Supernatural Border Control has been secretly smuggling demons, spirits, and other dangerous entities into the mortal world for years.

Now Evelyn and the infuriatingly charming demon prince must investigate a conspiracy buried beneath decades of corrupted records, illegal soul contracts, and supernatural bureaucracy.

Their enemies have power.

Evelyn has the Regulatory Codex.

And apparently, the law really is stronger than Hell.

A sharp, darkly funny urban fantasy mystery filled with bureaucratic satire, supernatural intrigue, workplace comedy, slow-burn romance, demons, forbidden magic, and an unforgettable heroine who can defeat the forces of Hell with nothing but a red pen and the correct form.