Now and then a door slammed, sending metallic echoes rolling along the corridors.

In a 260-year-old tradition, the noon gun is still fired daily, sending echoes across the old rooftops.

They hit with a bang that sent echoes from hill to hill.

A minute later the gates shuddered under a tremendous impact that sent echoes rolling around the courtyard.

Blade laughed, sending harsh echoes rolling around the tunnel in the darkness.

Inside it was cool, wide halls sending soft echoes from the vaulted ceiling.

His footsteps sent dry echoes scurrying through the cavernous room.

The blasts sent tremendous echoes out the narrow passage to his home just north of the canyon, where he had been asleep.

Rain dripped into the water from trees, sending hollow echoes through the darkness.

But the walls of this increasingly complex maze sent back only muddled and confusing echoes.