Void Crystals were incredibly rare spatial-type materials. Unlike Void Starmetal, it was not used to make armor or weapons. Instead, it was a vital component for utility tools such as spatial rings, communication devices, or even transport formations.

One example of its usage was the transmission puppet that Patelocke was possessing; it had a Void Crystal as its core.

Void Crystals were even rarer than Void Starmetal. After all, it was much harder for a consciousness entity to be annihilated by the void.

But now that Su Chen had confirmed that the Astrals had such a use, it was impossible for him to politely hold himself back any longer. He immediately commanded his disciples to capture all of the Astrals alive.

And he spared no expense to maximize his yield. Afterwards, he personally sent the Astrals into the void and extracted their Void Crystals one after another before leaving.

With these newly acquired Void Crystals, Su Chen would be able to create even more ancient transmission puppets. That meant that Patelocke would no longer have to stay in one place for long periods of time. With an ancient transmission puppet of his own, Su Chen would be able to communicate with anyone at any place and at any time. In a similar vein, he could also create long-range teleportation formations. The benefits that this would bring to the entire Primordial Continent was quite apparent.

From this point of view, these Astrals were truly living treasures.

He had originally...