Rosa.

She didn’t stop. She just kept walking, balancing a tray of coffee cups as if she had done nothing at all.

I unfolded the paper under the table.

Mr. Harper’s study. Third floor.
He wanted you to see it.
I have the key.

I read it twice, then lifted my head and found Rosa in the doorway to the kitchen. She did not look at me, but something in the line of her shoulders told me the note had cost her courage.