Chapter 922 - Reinforcement

All those monsters suddenly became transparent. In the next second The spiritual beam from the barrier went toward those Monsters. 

But as those Monsters became transparent, none of those spiritual beams affected any of those Monsters. 

Naturally, this is a surprising thing for everyone. Even Natalia and the others are unable to believe that. The most important thing is the speed of those Monsters. 

It looks like those Monsters did not even finish their attack when they became transparent like that. It looks like those Monsters are already aware of the capability of the barrier and because of this, all those Monsters are using that kind of transparent ability to defend themselves. 

Here comes the main question. How were those Monsters able to know the defense capability of the barrier, and also, how can all those Monsters have the same kind of ability?