Boy, it's getting darker. It's getting kinda spooky.
5 seconds sound clip from the Bon Voyage, Charlie Brown movie soundboard.
You can hear this line at 00:35:55 in the Blu-ray version of the movie.
Quote context
[...]
- See the greenhouses past the nursery?
- Now look for the road to the left.
- This must be it, Charlie Brown.
- Although I can't see any chateau.
- Boy, it's getting darker. It's getting kinda spooky.
- Well, let's go on. We have no choice.
- Ha!
- This is it, Linus. This is where we're going to stay.
(In french) Are you sure, madam?
[...]