The Mole People Stole My Kidney

Another ancient civilization may live inside Earth's hollows.

Legends say that an entry to the underground realms was located somewhere in the
North, and legendary ancient tribes living on the planet centuries ago used the
entries to have a good shelter under the Earth's surface.
Mystics believe that the entry to the legendary Hyperborea, Shambala and Plutonia is
carefully concealed from outsiders somewhere close to the North Pole. Recently,
a reliable edition reported that UFOs coming to this planet start not
from space but burst out from huge holes under the surface in the North
Pole.