Someone found a Old Tomb of a Nirvana Stage practitioner called Master of the Tomb in the Sky Flame Mountain near Yan City. This Nirvana Stage practitioner had set up an energy seal outside the old tomb. Only a few Advanced Manifestation Stage practitioners could break it. Inside some rooms are protected with force fields. There is also a main hall. This room is better defended and has also better resources. This room contained 6 Soul Treasures.