But Ethelred, upon entering the door, was amazed to perceive no sign of the evil hermit...

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

You can hear this line at 00:24:04 in the radio play.

Quote context

[...]

- But feeling the rain upon his back and fearing the rising of the tempest, uplifted his axe and quickly made a hole in the plankings of the door for his gauntleted hand...

- And now pulling sturdily, he so cracked and ripped all asunder, that the noise of the dry and hollow-sounding wood alarumed and reverberated... throughout the forest.

- Why do you stop?

- Why, that's... that's strange. I fancied I just heard the very sound I read about.

- Let us say it was caused by the storm. Pray continue.

- Oh, yes, the storm. Of course.

- But Ethelred, upon entering the door, was amazed to perceive no sign of the evil hermit...

- But, instead, a dragon of prodigious and scaly demeanor, which sat on guard before a shield of shining brass.

- And Ethelred uplifted his axe, and struck the head of the dragon, which fell before him with a shriek so horrid and harsh... like whereof was never before...

- What sound is that?

- Sound? The shriek of a dragon, my friend. Read on.

- I, er... Very well.

[...]