On a mountain slope at the periphery of Thunderpeal Mountain.

The three squads turned for a last look as they left, and they could see thunderclouds descending across the whole mountain, forming a protective veil with the Thunderpeal Tree at its core.

"Looks like no one will be able to get in from now on," Qin Yue said with a satisfied nod.

The veil was powered by the thunderclouds that constantly fed energy to it, and it would probably take a Duke to be able to break through it.

It was definitely engineered by the Thunderpeal Tree, to prevent any more invaders from molesting it.

The tree was sealing itself off from the...