C1493 Dying struggle(1)

The first of the three volumes of the Heavenly Book was to focus on the martial arts technique.

When Lu Fan said the two words "Vault". Those who knew what a Vault was, were all stunned on the spot.

It was not because the Vault was more precious than the gas reservoir volume and the Dao Repository Volume.

It was just that the Vault was more famous than the other two volumes