A book that i love...hmm. Oh! I love this book called The Daughter by Jane Shemilt. This is the back:

Jenny is a successful family doctor, mother of three great teenagers, married to a celebrated neurosurgeon.
But when her youngest child, fifteen-year-old Naomi, doesn't come home after her school play, Jenny's seemingly ideal life begins to crumble. The authorities launch a nationwide search with no success. Naomi has vanished, and her family is broken.
As the months pass, the worst-case scenarios -- kidnapping, murder -- seem less plausible. The trail has gone cold. Yet, for desperate Jenny, the search has barely begun. More than a year after her daughter's disappearance, she's still digging for answers -- and what she finds disturbs her. Everyone she's trusted, everyone she thought she new, was keeping secrets, especially Naomi. Piecing together the traces her daughter left behind, Jenny discovers a very different Naomi from the girl she thought she'd raised.
Jenny knows she'll never be able to find Naomi unless she uncovers the whole truth about her daughter -- a twisting, painful journey into the past that will lead to an almost unthinkable revelation...

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