In 1984

The climax of 1984 occurs when Winston is tortured in Room 101, specifically, by the rats.

Although it was three or four metres away from him, he could see that the cage was divided lengthways into two compartments, and that there was some kind of creature in each. They were rats.

‘In your case,’ said O’Brien, ‘the worst thing in the world happens to be rats.’

A sort of premonitory tremor, a fear of he was not certain what, had passed through Winston as soon as he caught his first glimpse of the cage. But at this moment the meaning of the mask-like attachment in front of it suddenly sank into him. His bowels seemed to turn to water.

‘You can’t do that!’ he cried out in a high cracked voice. ‘You couldn’t, you couldn’t! It’s impossible.’