“Come on in, Jem,” I said.
“After while.”
He stood there until nightfall, and I waited for him. When we went in the house I saw he had been crying; his face was dirty in the right places, but I thought it odd that I had not heard him.

– Harper Lee

To Kill a Mockingbird, Chapter 7. Scout describes how Jem reacts when he discovers the hole in the Radley tree has been filled with cement by Nathan Radley and therefore no more gifts can be left. Jem was unable to thank Boo for the gifts that he left them in the tree.