291H: Teens captive on open stairs (Solved)

I read this book in the 1970’s.  It’s a dystopian future where teens are trapped on an open staircase.  They arrive separately and meet each other there.  They must do certain actions in order to receive food.

2 thoughts on “291H: Teens captive on open stairs (Solved)

    • That’s it! The cover and description bring on more of the disturbing feelings I’ve always had about that book. Thank you!

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