She never recovered the memories, and Dr.

Patel said that might be a mercy.

What came back instead was her laugh.

It returned slowly, like a bird landing on a fence, and the first time I heard it again, over a bowl of cereal and a terrible joke about a cow, I had to leave the room so she wouldn’t see me cry.

On the first anniversary of that morning in the emergency room, we planted a small tree in the yard.

Harper chose it, a redbud, because she liked the purple flowers.