The name Ancient Ruins Tomb comes from the Ancient Ruins (a former building) where the entrance to this tomb is covered with. The name is made up by players, CipSoft does not have an official name for it. The deeper you go, the harder the monsters are. This tomb is not a good choice for a lower level since you need to go through several fire fields to get in. Be prepared to use a potion or two if you are under level 20 just to get in.