Underworld

Nine Circles of the Underworld
Near the surface, houses outcasts and 'good' Demon Penguins A massive underground lake, complete with sea monsters. Used to train Naval Demons. Huge garbage dump. Tresury. A huge, smelly swamp, with Diss Prison in the center. Cloning Facility,where Demon Penguins are created. Barracks for the Demon Army. Huge. Training Ground for Demon Penguins. Howling Wasteland, frozen. Like the real-world Antarica, only worse. In the middle is the Top-Secret Demon Headquarters, where no penguin has ever made it to. Even Demon Peguins fear this place, as they like fire and the weaker ones freeze if they come here.
 * First Circle
 * Second Circle
 * Third Circle
 * Fourth Circle
 * Fifth Circle
 * Sixth Circle
 * Seventh Circle
 * Eighth Circle
 * Ninth Circle