I'm looking for a way to find text on the next line of a certain string using regex.

Say I have the following text:

```
Note:
Just some text on this line

Some more text here.

```

I just want to get the text 'Just some text on this line'.   

I don't know exactly what the other text will be, so I can't search between 'Note:' and 'Some more text here'.   

All I know is that the text I want is on the next line from 'Note:'.   

How could I do this?

Cheers,
CJ