Nie Tian walked straight towards the large-scale teleportation portal.

The base of the portal was octagonal, and paved with a large amount of Space Spirit Jades and other materials that contained spatial power, which were there to power the portal. There was also a compass of stars inside, which seemed to be used for setting up coordinates.

Four sets of spatial coordinates could be seen already set up on the compass. From the look of it, just by choosing from them, people would be able to teleport to any of those destinations.

Nie Tian took a glance at them, and immediately realized that three sets were coordinates in the Realm of Flame Heaven, the Realm of a Thousand Devastations, and the Realm of Mystic Heaven.

He pondered the reason behind it. Each of those three realms had a grand spell formation that had been left there by the Ancient Fragmentary Star Palace, and each grand spell formation had three lofty mountain peaks as their cores.

Therefore, he suspected that...