She had known for years.

It had been said out loud in her kitchen more than once, because Kevin told her things he did not tell me, which is its own subject.

So when she needed, that afternoon, for her son to believe something ridiculous about his wife and his three-hour-old daughters, she did not have to construct anything.

She only had to find the place where he already thought he had failed us, and put her thumb on it.

And the astonishing part — the part I have had to make a sort of peace with — is that she did not even need the photograph to be good.