A banner emblazoned with the device of Hellgate Prison

Hellgate is an infamous prison located in the Kaiantoran city of Anak, well-known across Kaiantor for its sadistic torturing techniques and high prisoner disappearance and death rate.

At present, it is run by a rat known simply as Gaoler and his own personal contingent of Ratguards and Gaolers, unofficially called the Devil's Advocates. These Ratguards often doubled as torturers and torturers' assistants; Tharra is one such prisonguard.

The Anaki Barracks is located next door to Hellgate, though Gaoler and the Devil's Advocates have their own personal quarters in Hellgate as well, largely for security reasons.