Jamie's big sister Rose died nearly five years ago and his family just hasn't been able to be happy again. Mum's gone off with a man from the support group and his Dad takes Jamie and his big sister (and Rose's twin) Jas to live in the country.
At his new school, Jamie finds it hard to fit in - he can't seem to tell people the truth about his family, his holidays, his Christmas. He has to wear his Spider-Man top every day, so when his Mum comes to visit she will see him in it. His only friend is Sunya, whose hijab is really a cape, but he knows his Dad would not like him being friends with Sunya and he has to keep her a secret.
My sister lives on the mantelpiece is a page-turning sob-fest and would appeal to fans of Mark Haddon's modern classic The Curious Incident of the Dog in the Night-time.