Get the first three books in the addictive, award-winning, number-one bestselling Roy & Castells series, in one GREAT-VALUE Box Set!

Emily Roy, a profiler on loan to Scotland Yard from the Canadian Royal Mounted Police, joins French true-crime writer Alexis Castells on the hunt for serial killers, in cases that take them from London to Sweden and back to the past … to some of the most horrific periods of modern history.

'A bold and intelligent read' Guardian

'A satisfying, full-fat mystery' The Times

'Assured telling of a complex story' Sunday Times

Block 46 (Book One)

The hunt for a serial killer takes criminal profiler Emily Roys and true-crime writer Alexis Castells from London to Sweden, and back to the past, to Buchenwald Concentration Camp, as a terrifying connection comes to light. The first instalment the disturbing, chilling Roy & Castells series, by the Queen of French Noir.

Keeper (Book Two)

An abduction in London and the discovery of a body on the west coast of Sweden lead criminal profiler Emily Roys and true-crime writer Alexis Castells back to Jack the Ripper's Whitechapel, as they hunt a serial killer. Book two in the explosive, award-winning Roy & Castells series.

Blood Song (Book Three)

The action swings from London to Sweden, and then back into the past, to the atrocities of Franco's Spain, as Roy & Castells hunt a monstrous killer … in the third instalment of 'Queen of French Noir' Johana Gustawsson's award-winning, international bestselling Roy & Castells series.

Praise for the Roy & Castells series

***Longlisted for the CWA International Dagger***

***Winner of Balai de la Découverte and Nouvelle Plume d'Argent Awards***

***International Number One Bestseller***

'Dark, oppressive and bloody but also thought-provoking, compelling and very moving' Metro

'A must-read' Daily Express

'A truly European thriller' Financial Times

'A real page-turner, I loved it' Martina Cole

'Cleverly plotted, simply excellent' Ragnar Jónasson

'Bold and audacious' R. J. Ellory

'Gustawsson's writing is so vivid, it's electrifying. Utterly compelling' Peter James

'Gritty, bone-chilling, and harrowing – it's not for the faint of heart, and not to be missed' Crime by the Book

'A relentless heart-stopping masterpiece, filled with nightmarish situations that will keep you awake long into the dark nights of winter' New York Journal of Books