When I look at Lisa now I see the shadow of middle age on her face. This is disconcerting. One’s child, after all, is forever young. A girl, perhaps, a young woman even – but that hardening of the features, that softening of the body, that hint that time past is levelling up with time ahead … dear me, no. I look with surprise at this home counties matron, wondering who she is – and then from the eyes round which spread little vulnerable fans of wrinkles there stares at me the eight-year-old, and the sixteen-year-old, and the one-year-wedded Lisa with red shrieking baby.

