Book excerpt: Kate - whose care for her terminally ill mother coincides with the birth of her first child in the early months of a young marriage - must, in a single year, come to terms with radiant beginnings and profound loss. Kate's everyday world is enveloped by the gradual vanishing of her mother. And as the woman who has been her best friend and mentor disappears, we see Kate deal with timeless, perhaps unanswerable, questions of love and death.