Half Magic (Tales of Magic, #1)

by Edward Eager

And if you have ever had a moral pointed at you, you will know that it is not a completely pleasant feeling. You are grateful for being improved, and you hope you will remember and do better next time, but you do not want to think about it very much just now.

She felt awful inside, the way you always do when you’ve been perfectly hateful to those you love best, and she didn’t even know why she had done it.