By the time my mother-in-law died, I had learned the sound a house makes when love has left it.

It is not silence. Silence is too clean.

It is the slow tick of the hallway clock at two in the morning while you are listening for a weak cough from the downstairs bedroom. It is the hum of a refrigerator holding soup no one has the strength to eat. It is the whisper of slippers against hardwood when you rise for the fourth time before dawn to check medication, change sheets, lift a body that once lifted someone else’s son and now weighs almost nothing in your arms.