***NOW AN INTERNATIONAL BESTSELLER***

COSMOPOLITAN ''BOOKS OF 2019 TO BRING TO YOUR BOOKCLUB''

''Entrancing, compelling, atmospheric, reminiscent of Daphne du Maurier. A beautiful read that delivers a shocking and satisfying ending'' Liv Constantine, bestselling author of The Last Mrs Parrish

''Delicious and spellbinding . . . absolutely absorbing and scandalous'' Booklist

''Enthralling and addictive'' Lisa Ballantyne, bestselling author of The Guilty One

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Seraphine Mayes and her brother Danny are the first set of twins to be born at Summerbourne House. But on the day they were born their mother threw herself to her death, their au pair fled, and the village thrilled with whispers of a stolen baby.

Now twenty-five, and mourning the recent death of her father, Seraphine uncovers a family photograph taken on the day the twins were born featuring both parents posing with just one baby. Seraphine soon becomes fixated with the notion that she and Danny might not be twins after all, that she wasn''t the baby born that day and that there was more to her mother''s death than she has ever been told...

Why did their beloved au pair flee that day?
Where is she now?
Does she hold the key to what really happened?

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''Don''t just pick up and read Emma Rous'' The Au Pair, dive into it and get washed away with it'' A bookseller

''Filled with mystery and intrigue. I was gripped until the very last page!'' Fiona Valpy, bestselling author of Sea of Memories

''This will keep you turning those pages. The characters are still playing on my mind'' Jane Corry, bestselling author of My Husband''s Wife

''One hell of a ride'' New York Post

''Vivid characters, a magical setting and a tightly knitted plot . . . jaw-dropping climax'' Bookpage

''Family secrets come to light in this compelling debut with a gothic touch and a shocking denouement. Enthralling and addictive'' Lisa Ballantyne, bestselling author of The Guilty One

''A page-turner'' Publisher''s Weekly

''A juicy and compelling read by a promising new author'' Shelf Awareness