Looking For A Book on a woman who runs away and starts new life

[gordie1]

Hi there I am Looking For A Book on a woman who runs away and starts new life after her mother has a stroke and she wins a lot of money on a horse it is also a story about a police woman who looks for her I enjoyed it I cant remember the title or the author but I got it in waterstones 2 years ago and it was 3 for 2 in fiction so it is quite recent. Any ideas no luck on google