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Lv 6
? asked in Arts & HumanitiesBooks & Authors · 8 years ago

Could you help me remember the title of the sci-fi novel described below?

I think the word "wall" is in the title.

Takes place on an alien planet with non-human, non-technical, sentient inhabitants. Every year some adolescents are selected to climb the "wall" in some sort of ritual. Apparently hardly anyone ever returns from this quest and those who do are mad.

The planet has a surface atmospheric pressure that is very high. At the end of the novel the adolescents meet up with space-faring human beings.

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