I am the only passenger leaving the train at Oxford station. The platform is deserted and there’s a sharp chill in the air. The sky’s a dull white sheet. I sit on my roller bag, button up my cardigan and look around for Chrissy Sondheim. She said she’d be on the platform holding a card with my name on it. The silence is almost deafening. I think about the many times I came to Oxford when Alba was a student and how close we were. It had been the two of us against the world from the moment I gave birth to her.