Then the wall of monitors flickered into life.

When the wall flickered again, Rund stumbled out, unnerved but excited.

The huge viewscreen that filled the entire forward wall of the bridge flickered, and the starscape it had been showing vanished.

The wall flickered and the holos came back with monkeys chattering in jungle treetops.

The walls flickered and oozed, the passageway seemed to stretch on forever.

The wall flickered in the light of the single lamp and strange pictures seemed to form.

The glowing walls flickered and then suddenly rang as if a bell had been struck somewhere deep inside the mountain.

The blue walls flickered and dissolved into a darkening, grayish haze.

The walls of the room glowed and flickered.

Meanwhile, in another room not far away, all four walls flickered with light and sound.