The critically acclaimed Roy & Castells series, including BLOCK 46, KEEPER and BLOOD SONG, has won the Plume d’Argent, Balai de la découverte, Balai d’Or and Prix Marseillais du Polar awards, and is now published in more than twenty countries.


A TV adaptation is currently underway in a French, Swedish and UK co-production. 

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New book available in September 2022!
Te tenir la main pendant que tout brûle 


Published by Orenda Books and translated by David Warriner

Three women, three different eras, a common denominator: the figure of the devil that came to haunt them.

Blood Song
Roy & Castells III



A terrifying, vivid and riveting serial-killer thriller that sweeps from modern-day London to Sweden, and back into the past, to the shocking atrocities of Franco's dictatorship in Spain . . .


Spain 1938: The country is wracked by civil war, and as Valencia falls to Franco's brutal dictatorship, Republican Teresa witnesses the murders of her family. Captured and sent to the notorious Las Ventas women's prison, Teresa gives birth to a daughter who is forcibly taken from her.

Falkenberg, Sweden, 2016: A wealthy family is found savagely murdered in their luxurious home. Discovering that her parents have been slaughtered, Alienor Lindbergh, a new recruit to the UK's Scotland Yard, rushes back to Sweden and finds her hometown rocked by the massacre. Profiler Emily Roy joins forces with Alienor and her colleague, true-crime writer Alexis Castells, and they soon find themselves on the trail of a monstrous and prolific killer, in an investigation that takes them from the Swedish fertility clinics of the present day back to the terror of Franco's rule, and the horrifying events that took place in Spanish orphanages under its rule...

Roy & Castells II


A breathless new thriller from the Queen of French Noir, sequel to the international bestseller BLOCK 46 and next in the award-winning Roy & Castells series.

Murders in London and Sweden lead the team back to Jack the Ripper's Whitechapel . . .

Whitechapel, 1888: London is bowed under Jack the Ripper's reign of terror. 

London 2015: A woman's body is found mutilated in a forest, her wounds identical to those of the Tower Hamlets victims. With the man arrested for the Tower Hamlets crimes already locked up, do the new killings mean he has a dangerous accomplice, or is a copy-cat serial killer on the loose.

Profiler Emily Roy and true-crime writer Alexis Castells again find themselves drawn into an intriguing case, with personal links that turn their world upside down...

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Block 46
Roy & Castells I


A multi-layered, sweeping and evocative thriller that heralds a stunning new voice in French Noir.


WINNER of Balai de la Découverte 2016 and Nouvelle Plume D'Argent 2016


First in the award winning Roy & Castells series

Falkenberg. Sweden.  The mutilated body of talented young jewellery designer, Linnea Blix, is found in a snow-swept marina.


Hampstead Heath, London. The body of a young boy is discovered with similar wounds.

Buchenwald concentration camp, 1944. In the midst of the hell of the Holocaust, Erich Ebner will do anything to see himself as a human again.

Are the two murders the work of a serial killer, and how are they connected to shocking events at Buchenwald?

Emily Roy, a profiler on loan to Scotland Yard from the Canadian Royal Mounted Police, joins up with Linnea's friend, French true crime writer Alexis Castells, to investigate the puzzling case. They travel between Sweden and London, and then deep into the past, as a startling and terrifying connection comes to light.