The baleful gleam came from the setting, full and blood-red moon which now shone vividly through a widening crack in the walls of the house itself.

10 seconds sound clip from the The Fall of the House of Usher (Escape) classic radio play.

You can hear this line at 00:27:06 in the radio play.

Quote context

[...]

- There, in the flickering light of candles, in the gloom-encurtained doorway stood the shrouded body of Lady Madeline. For one shuddering instant, she swayed there.

- Then as he uttered a single piteous cry, she fell upon him in violent and now final death-agonies - and bore him to the floor - a corpse.

- From that chamber, and from that mansion, I fled aghast, out the massive portal, over the causeway, into the night.

- Suddenly there shot along the path a wild light.

- Then I looked back in heightened terror for the vast house and its shadows were alone behind me.

- The baleful gleam came from the setting, full and blood-red moon which now shone vividly through a widening crack in the walls of the house itself.

- And even as I gazed, this fissure opened rapidly! There came a fierce breath of the tempest!

- The entire lunar orb burst at once upon my sight!

- My brain reeled as I saw the mighty walls rushing asunder!

- There came a long tumultuous shouting sound like the voice of a thousand waters!

[...]