Impostor
Format:Paperback
Publisher:Cornerstone
Published:3rd Feb '26
Should be back in stock very soon

FROM THE MULTI-MILLION-COPY BESTSELLING AUTHOR
Murder and mystery are peppered with dark humour in this fast-paced thriller from the bestselling crime writer and author of The DCI Ryan Mysteries.
SHORTLISTED FOR THE BRITISH BOOK AWARDS - CRIME THRILLER OF THE YEAR
“LJ Ross keeps company with the best mystery writers” – The Times
“A literary phenomenon” – Evening Chronicle
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There's a killer inside all of us...
After an elite criminal profiling unit is shut down amidst a storm of scandal and mismanagement, only one person emerges unscathed.
Forensic psychologist Doctor Alexander Gregory has a reputation for being able to step inside the darkest minds to uncover whatever secrets lie hidden there and, soon enough, he finds himself drawn into the murky world of murder investigation.
In the beautiful hills of County Mayo, Ireland, a killer is on the loose. Panic has a stranglehold on its rural community and the Garda are running out of time.
Gregory has sworn to follow a quiet life but, when the call comes, can he refuse to help their desperate search for justice?
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READERS LOVE LJ ROSS
"Totally gripping from start to finish” 5-star reader review
"A must read book. Can't wait for the next one." 5-star reader review
"I couldn't put this book down from the minute I picked it up." 5-star reader review
"Great page turner, with a lively plot that holds numerous twists and turns; keeps you guessing until the very end” 5-star reader review
“Brilliant from start to end, be prepared to read in one sitting!” 5-star reader review
“Atmospheric, gripping and twisted…YOU HAVE TO READ THIS!” 5-star reader review
ISBN: 9781804960448
Dimensions: 196mm x 129mm x 25mm
Weight: 280g
320 pages