Nobody had asked her about anything in that casket except her granddaughter’s colour.

Detective Ibarra’s note on that interview contains one line that I have read many times: Subject offered an explanation for a fact not yet put to her.

And Natalia said she had never seen anything.

That she was not a medical person.

That Fernando handled Sophia’s care.

That she had been told the child was ill and sleeping and that she had believed it, and that she did not know what her brother had prescribed to whom.

She said that for four hours and she was, at that point, telling about sixty per cent of the truth.