The school called after my son stepped in to protect his little sister. He knew he might get in trouble, but he stood by her. That moment showed me his true heart.

“Nobody leaves.”

Mark stared at me.

I could see the battle happening inside him.

Then, finally, he reached into the inside pocket of his jacket.

He pulled out an old envelope.

The paper was yellowed.

Creased.

Worn at the edges.

My name was written across the front.

My handwriting.