"Excellent. This is historical mystery fiction at its finest."-- "Publishers Weekly (starred) [praise for the Giordano Bruno thrillers]"
"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) [praise for the Giordano Bruno thrillers]"
"Hugely enjoyable. It's played straight, but never humorlessly so, and there's just enough 'proper' history amid the intrigue to keep purists on side."-- "Guardian [praise for the Giordano Bruno thrillers]"
"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 NY Times bestselling author of The Woman in the Window [praise for Bruno thrillers]"
"With its twisting plot and vivid scene-setting, Treachery confirms Parris's growing reputation as a writer of historical thrillers."-- "Sunday Times (London) [praise for the Giordano Bruno thrillers]"
"Parris is, as always, adept at maintaining a fraught atmosphere, and effortlessly integrates the whodunit plot with the power politics of the time. This superior blend of religious schisms and murder should win Parris new fans."-- "Publishers Weekly (starred)"
"Parris' overstuffed plot vividly dramatizes the vibrantly vicious world of the court in rich historical detail: tangled allegiances, back-stabbing, secret romances, and bizarre customs."-- "Kirkus Reviews"