Hades II is the second planet from the sun of the Hades system. Once inhabited by the lost Hadesian civilization, ruins of ancient cities can be found on the planet under layers of volcanic ash. The lack of moisture and air underneath the ash layers has kept the objects that lay within them almost perfectly preserved. They are of special interest to archaeologists because they represent the best remains of the destroyed Hadesian culture. Any ruins left exposed to the violent atmosphere of the dead planet have been eradicated over time.