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They seem like a lovely family. Until you meet Rosemary.
Iris is reeling from the loss of her beloved stepfather Sam. His death was apparently caused by an accidental drug overdose. But Iris knows Sam would never do drugs and she’s convinced there was foul play. Why will nobody believe her?
And who is this mysterious Aunt Rosemary she keeps hearing about? Iris has never met her. But she knows that her mother Daisy and her Aunt Violet fell out with their sister Rosemary a long time ago.
Something dreadful happened at Abbey House, their mansion in the Cotswolds, but Iris has learned never to ask about it. Now, in the wake of Sam’s death, Iris is more curious than ever. Could there be something rotten at the heart of her seemingly perfect family?
Iris sets out to uncover what happened all those years ago, and whether those events are somehow linked to Sam’s untimely death. But the deeper she probes, the more shocking the secrets she uncovers. And someone is determined to stop her finding out anything more.
It looks like Rosemary is back.
The Other Sister is a wildly compelling tale of surprising twists and sinister secrets that fans of the psychological thriller genre will adore.

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