C1752 Heartburn Dragon

Xiao Yin's face once again revealed a smile.

In front of the stone door that was engraved with runes, Xiao Yin took out a jade card from his bosom.

He embedded the jade card into the groove of the stone door.

Immediately, the runes on the stone door began to glow and spin.

As it spun, the aura of a formation came from the stone door.

Then, in front of everyone else