I loved this book, and am amazed that it hasn't received more glowing (Amazon) reviews than it has.
A relatively slight novel (in size), it none the less packs a punch as a sensitively-told tale of a family which is going through the traumas of a very recent separation. It is told in the first person in alternating chapters by the couple - Rachel and Andrew - and their two daughter, fifteen-year-old Grace and six-year-old Tilly. I have recently read two other novels written in the voices of children (a difficult feat to pull off successfully), and neither works as well as this one. The author manages to avoid the trap of being too sentimental or "twee" with the younger child, and the adolescent Grace is very well captured.
In fact all four of the protagonists are sympathetic characters, even though (and this would be my one niggle) Rachel takes a lover almost immediately (would she really do this?), showing little regard for the feelings of her children. But apart from this, I found the story gripping and believable, and as the novel moved towards its desperate conclusion, I was totally absorbed by it. What reader could ask for more?
Altogether, highly recommended.