C471 Calculating Refractive Index

The entire formation was enveloped in gold light, Li Zhi didn't know what was inside the small door, thus he sighed and decided to give it a try.

With a wave of his hand, he took out the Slaughterer Sword and walked inside. The moment he walked in, Li Zhi felt a boundless golden light surrounding him, as if he didn't know where he was going, north, south, east and west