He'll work with you day and night, until you find that second secret, the one that'll bring you back to us.
5 seconds sound clip from the The Invisible Man (1933) movie soundboard.
You can hear this line at 00:49:10.591 in the Blu-ray version of the movie.
Quote context
[...]
- I shall offer my secret to the world, with all its terrible power.
- The nations of the world will bid for it. Thousands, millions.
- The nation that wins my secret can sweep the world with invisible armies.
- Jack, I want you to let my father help you. You know how clever he is.
- Don't you see what it means? Power! Power to rule! To make the world grovel at my feet!
- My father found a note in your room.
[...]