A locked room mystery within a manhunt killer [is] a clever and gripping set-up that helps makes Duffy's third outing easily his best so far.
The Sunday Times
Each book is a solid standalone, but it’s even better to ride the entire trilogy roller coaster with Duffy as your intimate companion.
The Boston Globe
Not content with constructing a complex plot, McKinty further wraps his story around a deliciously old-fashioned locked room mystery, the solution to which holds the key to Duffy’s entire investigation. Driven by McKinty’s brand of lyrical, hard-boiled prose, leavened by a fatalistic strain of the blackest humour, In the Morning I’ll Be Gone is a hugely satisfying historical thriller.
The Irish Times
This is the third in the series and, for me, the best, for it contains a locked room mystery at the heart of a drama about a major terrorist escape from the Maze prison, Belfast in 1983. Written in spare, razor-sharp prose, and leading up to a denouement that creeps up on you and then explodes like a terrorist bomb, it places McKinty firmly in the front rank of modern crime writers.
The Daily Mail
[A] superb trilogy reaches its finality...The hunt for [Duffy's quarry] begins and ends spectacularly. McKinty is particularly convincing in painting the political and social backdrops to his plots. He deserves to be treated as one of Britain’s top crime writers.
An action movie view of the Troubles...a fast and thrilling ride from the reliably excellent McKinty.
The Mail on Sunday
It's a sad day for fans of Adrian McKinty's smart 1980s-set procedurals featuring mordantly charismatic Belfast cop Sean Duffy. Not because his latest, In the Morning I'll Be Gone is any sort of let-down, but because it concludes what has been a hugely enjoyable trilogy. In some ways, Duffy resembles Iain Banks's young male heroes – crass and impetuous, but also wickedly funny and capable of an intense, redeeming empathy.
An older, more sobered Duffy, still unconventional and willing to take chances, but more reflective, more Sherlock Holmes. His growing maturity result in fewer bedroom scenes but there is plenty of excitement and suspense elsewhere in this intelligent and gripping yarn.
The Irish Independent
Sardonic Belfast cop Sean Duffy [in] another terrific Troubles-set thriller 4.5/5