He stood against a small open panel that had split from the white wall.
At the open panel he shoved him into the apartment.
He found an open panel at the bottom of the long flight.
Now he gazed into the space behind the open panel.
The open panel obscured most of the man's body, and hid his face.
Then he dashed through the open panel and into the first right chamber.
His hand was on a switch behind an open panel in the wall.
He made his way toward the anteroom, with its open panel.
He looked again at the open panel before him.
He turned suddenly about and looked at the open panel with sharp, piercing eyes.