Half a month later than the originally planned two months, Zhou Heng and his party finally arrived at the central area of the snowfield, the entrance of the ancient tomb.
Many people were already here, but each looked somewhat battered, with some still having blood stains on their bodies that hadn't been cleaned, exuding a rather terrifying killing intent. Evidently, these people had also encountered the fierce bombardment of the bird flock and possibly lost some of their companions.
Those birds were indeed terrifying. Apart from strong teams like Zhou Heng's Milky Way Realm squad, Comet Realm experts had to be present for support; otherwise, casualties would be inevitable.
To Zhou Heng's surprise, the nine Black Cave Kings had not yet entered the ancient tomb but were instead studying something with seven dark iron rings.
Jin Haochen, who knew more because his father was among those powerful figures, said, "Those are Thundercloud Rings, the key to opening the tomb!"