A child is reported missing on your island. At first, I'm told there is no such child. I then find that there is, in fact, but that she has been killed.

16 seconds sound clip from the The Wicker Man (1973) movie soundboard.

You can hear this line at 00:48:26 in the Blu-ray version of the movie.

Quote context

[...]

- Miss, I hope you don't think that I can be made a fool of indefinitely.

- Where is Rowan Morrison?

- Why, here she is, what remains of her physically. Her soul, of course, may even now...

- Lord Summerisle! Where is Rowan Morrison?

- Sergeant Howie, I think that... you are supposed to be the detective here.

- A child is reported missing on your island. At first, I'm told there is no such child. I then find that there is, in fact, but that she has been killed.

- I subsequently discover that there is no death certificate.

- And now I find that there is a grave. There's no body.

- Very perplexing for you. What do you think could've happened?

- I think Rowan Morrison was murdered under circumstances of pagan barbarity, which I can scarcely bring myself to believe as taking place in the 20th century.

[...]