You have your money, Eivol. Now, tell me the secret. How do I escape from the Doom-Trap?

8 seconds sound clip from Batman (1966) - A Death Worse Than Fate (S1E10) TV Series.

You can hear this line at 00:12:42 in the Blu-ray version of the movie.

Quote context

[...]

- Sure, I remember. That straitjacket escape was her big gimmick.

- As usual, vain boasting has been this criminal's undoing.

- Gosh, though. Where does this Gnome book store come in?

- Where indeed. For back behind the phony book store, Eivol is ready with his inescapable Doom-Trap.

- Well, well. Legal tender after all. Isn't life surprising, hmm?

- You have your money, Eivol. Now, tell me the secret. How do I escape from the Doom-Trap?

- You mean you haven't guessed, Zelda? Even after the hint I gave you?

- There is no way to escape.

- True.

- Even I, Eivol Ekdal, with all my twisted Albanian genius. Even I cannot devise the answer.

- That is where Batman comes in.

[...]