A flash told him the invisible shield was gone.

He would talk, when we were alone, but always as across an invisible shield.

A: Yes, she had sort of an invisible shield around her.

The rock struck an invisible shield and fell to the ground with a heavy thud.

It was almost as if the enemies were being protected by an invisible shield.

Rod felt his guard going up as though it were an invisible shield that surrounded him in a globe.

After creating an invisible shield around the ship, however, she became visible again until the very end.

Now she closed her mind, effectively surrounding herself with an invisible shield.

But before she could lay into a third, the invaders erected some kind of invisible shield.

The whole stage, up where the President and his group were, was protected by an invisible laser-actuated shield.