It's all true. Cross my heart.
4 seconds sound clip from the Wuthering Heights (1939)) classic radio play.
You can hear this line at 00:11:10 in the radio play.
Quote context
[...]
- Don't frown so, Heathcliff. Sit here beside me on the stone, and we'll look out over the moors.
- Castle! It's Penis tone Crag and you know it.
- It's not either! This is your castle and you're a prince in disguise.
- It's all true. Cross my heart.
- Your father was - was Emperor of China, and your mother - a Queen of India.
- You were kidnapped by wicked sailors and brought to England.
- Don't make fun of me, Cathy.
- I'm not making fun of you. You're a really and truly Prince. And I'm your slave.
[...]