安迪在肖申克被关了20余年，借用一张海报遮蔽洞口从而获得了自由。
诺顿的残忍与利用他人：
he had brains and he had heart Norton was determined to use the one and crush the other.
海报的细节全文多次提及：
The poster was right over his bunk. There had been a poster there, in that exact same place, for twenty-six years. And when someone--it was Warden Norton himself, as it turned out, poetic justice if there ever was any--looked behind it, they got one hell of a shock.
诺顿的怒气：
The balloon went up.
Norton hit the roof.
既是对典狱长无理要求的笑，又是为安迪越狱感到高兴：
I couldn't help myself. The whole day--hell no, the last thirty years--all came up on me at once and I started laughing fit to split, a laugh such as I'd never had since I was a free man, the kind of laugh I never expected to have inside these grey walls.
