I knew taking the picture might break the spell: an at-risk student who, of her own accord without any prompting or suggestion, chose to read a book during free time after lunch might not be thrilled about having her picture taken. But on the other hand, it’s a picture of success, and when it’s a kid you’ve already grown to love in a way, a kid you’re already pulling your hair out over and cheering on and fussing at with a smile — you go ahead and take that chance.

Sure enough — “Mr. S! Don’t!” And the spell was broken. But unlike many magical moments, this one has evidence to back it.