Excellent book. I couldn't decide if mum was credible or not, although I became more and more convinced of her story as it unfolded. By the time she finished relaying her story I was totally on her side (view spoiler)[ I was terribly disappointed with the son and felt betrayed when I learned he had her admitted to a hospital. Given that, the ending was surprising, sad and uplifting all at one. (hide spoiler)]