Asperamanka looked here and there, as if seeking out an invisible door.

I had to make contact with her to open the invisible door between this world and the next.

She threw the machine gun down and hurried to a door almost invisible in the wall of a side chapel.

Then an almost invisible door in the rear wall slid back.

It was as if an invisible door had opened and closed, leaving him upon the other side of it.

It was as if invisible doors had been opened, and light streamed out of them.

But it was as if a colossal invisible door had been slammed in his face.

He donned a black cape which hung beside the nearly invisible door.

With the invisible door shut again,Lilith shouldn't be able to come after us.

She shrank away and suddenly was gone, as if slipping through an invisible door, seen from the side.