“Excellent. This is historical mystery fiction at its finest.”

– Publishers Weekly (starred)

“A masterful work that deserves a place on all public-library historical-fiction shelves, and that should be recommended to Phillipa Gregory fans.”

– Booklist (starred)

“Hugely enjoyable. It’s played straight, but never humourlessly so, and there’s just enough 'proper' history amid the intrigue to keep purists on side.”

– The Guardian (UK)

“One of my favorite authors, and she is unquestionably our greatest living writer of historical thrillers. Few novelists inhabit a setting - any setting - with such confidence and command; fewer still devise plots of such cunning and craft. If Hilary Mantel, John Le Carré, and Michael Connelly were to join forces, they might gift us with a novel as atmospheric, intelligent, and addictive as Treachery - or indeed any of Parris’s books featuring monk-turned-spy Giordano Bruno.”

– A. J. Finn, #1 New York Times bestselling author of The Woman in the Window

“An evil bookseller and a terrifying brothel lie ahead; what’s not to like? Gripping and fun.”

– The Observer (London)

“With its twisting plot and vivid scene-setting, Treachery confirms Parris’s growing reputation as a writer of historical thrillers.”

– The Sunday Times (London)

“Parris’s Giordano Bruno series has been a joy. Her Elizabethan England is loud, pungent, and blessedly free of some of the genre’s more egregious clichés. She wears her research lightly: at home with the detail of the period, she is quite happy to engage in a little creative anachronism to bring the story home.”

– The Daily Telegraph (UK)

“There are echoes of C. J. Sansom’s here. Her prose is taut and compelling. Her wielding of the historical material is always convincing but never overwhelming.”

– The Times (London)