Chapter 680, who burned it?

At the Blackstone training ground, Fang Hao watched the maids training for a while.

By the time he returned to the center of the square, the "Shadow Screen Vault Mechanism" had already been built.

In front of him stood a column-like structure.

At the top of the pillar was a monster with its mouth wide open to the sky.

A rainbow light spewed forth from the monster's mouth, coalescing high above the city.

The building was constructed.

But its function was still somewhat unclear.

Fang Hao opened the Book of Lords to check the map page.

"Damn, this thing is not easy to use."

On the map page, the main city's location remained visible, with no concealing effect whatsoever.

The building didn't have any settings that could be toggled on or off.

And there had never been a case where the building's function failed to work.

Not believing in bad luck, he took out another Blank Map.

And did a field recording.

Sure enough, the effect was there.