He left a heap of burnt papers in his fireplace, that's all.
3 seconds sound clip from the The Invisible Man (1933) movie soundboard.
You can hear this line at 00:09:59.033 in the Blu-ray version of the movie.
Quote context
[...]
- He had my permission to carry out his own experiments in his spare time.
- And to clear off when he liked, for as long as he liked?
- What does it matter, if he's in trouble?
- I've got the car outside. It'll give you a rest to come for a run.
- Do you think there are any papers in his room to help us?
- Surely he must have arranged where he was going. There may be letters.
- He left a heap of burnt papers in his fireplace, that's all.
- I've never seen him like it before.
- He was always so keen to tell me about his experiments.
- He meddled in things men should leave alone.
[...]