The Diary of Anne Frank

Dearest Kitty,
Whew! Released from the gloom and doom for a few moments! All I've been hearing today is: 'If this and that happens, we're in trouble, and if so-and-so falls ill, we'll be left to fend for ourselves, and if.'

Well, you know the rest, or at any rate I assume you're familiar enough with the residents of the Annexe to guess what they'd be talking about.