The wall materialized out of the dark night.

Instead, a wall of ice suddenly materialized in front of her.

Suddenly walls materialized close around them, shiny gold with curved fitted joints.

Behind it, the stars vanished as the wall materialized again.

A solid wall of men materialized all around the edge of the small clearing in the swamp.

The air around her hummed, engineering faded out, and the neutral walls of sickbay materialized.

A wall of brown granite, dark and damp from the condensing fog, materialized before them.

As he jumped up, the dark wall materialized abruptly in front of him.

As the familiar walls materialized, she couldn't help wondering if she'd been dreaming.

As the familiar walls materialized, she couldn't help wondering if she'd dreamed the events of last night.