There was a book of short stories that I read as a kid. I loved it and checked it out all the time in my schools library. The one story that sticks out is about a group of children in a perfect world but they were mutants, not perfect. They were kept in a nursery for these kinds. The story is told from the point of view of a kid named MLN or as he calls himself Emellan. Does anyone else remember this story?
The story has been asked about before in:
And the compilation The Other Side of the Sky has also been discussed in: