Hollow

&nbsp The Hollow was an underground tunnel network beneath the surface of sera that is home to the Underground Empire and many other subterranean creatures. Located in the crust of Sera, the Hollow is split between the Inner Hollows and Outer Hollows. The Outer Hollows are closer to the surface and were to mine for Gold, Lead, and Imulsion. The Inner Hollows lie deeper underground and appeared to be the cradle of the Locust civilization. The current fate of the Hollow is certain, it will live to destroy the human race The Hollow is the name for the underground network of tunnels that lay beneath the surface of