Presented by Penguin.

‘Will keep you captive before brilliant closing’ SHARI LAPENA, author of The Couple Next Door

‘So smart and unique . Pure suspense, in the first gripping web page towards the last shocking twist’ ERIN KELLY, author of He Stated/She Said

I know you do not know me nevertheless, you need to help me. I didn’t kill anyone.

When Rowan stumbles over the advert, it looks like as well good a chance to miss: a live-in nanny position, using a staggeringly generous salary. And when about The Switch of the Key: the addictive fresh thriller from your Sunday Times bestselling writer she finds Heatherbrae House, she is smitten by the high-class ‘sensible’ home fitted out with all modern conveniences, by the stunning Scottish Highlands, and by this picture-perfect family members.

What she doesn’t know is definitely that she’s moving into a problem – one which will end with a kid lifeless and her inside a cell awaiting trial for murder.

She understands she’s made errors. But she’s not guilty – at least not of murder. Which means someone else is certainly…

‘Creepy, engrossing, and oh-so-hard to place straight down’ JP DELANEY, writer of THE LADY Before

Filled with spellbinding menace, The Turn of the Key is certainly a gripping modern-day haunted house novel.

Praise for Ruth Ware:

‘Powerfully atmospheric, unguessably twisty…I devoured it’ Louise Candlish, bestselling writer of Our House

‘Dark and dramatic…part murder mystery, part family episode, altogether riveting’ A.J. Finn, writer of THE GIRL in the Home window

‘One of the greatest thriller writers around’ Independent

‘Agatha Christie matches The Girl within the Train’ SUNLIGHT

‘Dark, unsettling, amazing’ HEAT

‘Deliciously dark and spooky’ Sunday Mirror