Passage to Agartha, the legendary realm of the Hollow Earth. Your adventure starts here. Done as a homage to the many stories about the Hollow Earth (like Edgar Rice Burroughs' Pellucidar) and also the fascinating RPG by Exile Game Studio: Hollow Earth Expedition.

Journal entry: we followed the map and found an entrance near Cusco hidden by rocks and vegetation. We lowered ourselves into a massive system of caverns, and discovered a very old cabin, probably built in the 1930s by previous explorers. We shall use it as our base of operations. There are strange sounds coming from the tunnels, and we have also experienced phenomena that can only be described as paranormal. Is this really a portal to Agartha? The mythical Hollow Earth?