- And now you think the children...?
- I'm afraid so.

4 seconds sound clip from the Fugue in C Minor (Suspense) classic radio play.

You can hear this line at 00:19:17 in the radio play.

Quote context

[...]

- Give them that key. Let them go and look in the room where the pipes are. Then they'll see for themselves that there's no ghost.

- Key? Who told you about a key to that room?

- The children.

- I'm going to tell you something. Something I've never told to a living soul. It may frighten you.

- Margaret was going mad when she died. No one knew it but me. It ran in her family.

- I discovered it long after we were married, after the children were born. Otherwise, I'd never have...

- And now you think the children...?

- I'm afraid so.

- It was 'peopling of sound' she had... just like them. A fear of the dead's returning. She used to play...

- What's that?

- Sounds like the organ.

- But the motor isn't on. The console was locked when I left.

- Someone's trying to play.

- No one but me can touch that instrument. It's forbidden in this house and the servants are out. Unless those children...

- Come upstairs, Amanda.

[...]