บท 649: Chapter 471: Blue Sky Mayfly! Zhou Dao has arrived_2

With Zhou Dao's previous physical strength, he was unable to comprehend the mysteries within.

Now, his [True Furnace Body] has finally been perfected, combined with the Primordial King's Dharma Body, he can produce a resonance with it.

Hum...

The Yuan King Legal Sword continued to vibrate, the runes flying around it like small dragons, drilling into the Green Coiling Treasure Bag and finding the mysterious stone box left by Zhou Xuan.

"This is..."

Zhou Dao widened his eyes, somewhat disbelieving.

Was the Yuan King Legal Sword the key to opening this stone box!?

At this moment, Zhou Dao suddenly understood and everything fell into place.

Ever since he got the stone box from the Huo Dragon King in Lin'an Prefecture, and then made the Offering to get the Yuan King Legal Sword, and until now when his True Furnace Body was perfected, the two resonated and finally opened the stone box.