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Mr Killjoy: Luke Sackville Crime Thrillers, Book 9
An Absorbing British Crime Thriller
The Luke Sackville Crime Thriller series continues…
Beware the bearer of false gifts
Luke Sackville’s Ethics Team is stretched to breaking point across several investigations, little realising that one man links them all.
Narcissistic, cunning and ruthless, Mr Killjoy is reaping the rewards of cybercrime, and is indifferent to the fact that his victims are being driven to despair and beyond.
Luke connects the dots and begins to home in, but as the villain is cornered he strikes out and none of the team is safe.
Mr Killjoy is the ninth book in the series of crime thrillers featuring ex-DCI Luke Sackville and his Ethics Team. It’s perfect for fans of JD Kirk, LJ Ross, Jack Gatland, Alex Smith, TG Reid and JM Dalgliesh.
The Luke Sackville Crime Thriller series continues…
Beware the bearer of false gifts
Luke Sackville’s Ethics Team is stretched to breaking point across several investigations, little realising that one man links them all.
Narcissistic, cunning and ruthless, Mr Killjoy is reaping the rewards of cybercrime, and is indifferent to the fact that his victims are being driven to despair and beyond.
Luke connects the dots and begins to home in, but as the villain is cornered he strikes out and none of the team is safe.
Mr Killjoy is the ninth book in the series of crime thrillers featuring ex-DCI Luke Sackville and his Ethics Team. It’s perfect for fans of JD Kirk, LJ Ross, Jack Gatland, Alex Smith, TG Reid and JM Dalgliesh.
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Published September 17, 2025
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December 31, 2025
Luke is asked to investigate a suicide attempt by a young member of Filcher’s staff. The teenager’s parents believe he was in a relationship with an older woman, his line manager at work, which has now ended prompting his action. Once Luke and his team start to ask questions it quickly transpires that all is not how it seems.
Ambrose Filcher calls Luke and Edward Filcher (Luke’s pompous and ever bumbling boss and Ambose’s nephew) to a confidential meeting. Also present are Jean Scarratt an Assistant Chief Constable and Dominic Watts a cybercrime expert from the National Crime Agency. The NCA have finally made a breakthrough in tracking down a major cybercrime enabler. This was thanks to an uncharacteristic lapse in the use of a VPN, a simple error made only once, but one that revealed their true IP address. This points to it being a member of the Filchers IT department, and they can narrow it down even further to a group of six users. It is agreed that, once again, Luke will work with the police on secondment as a civilian advisor, to track down the culprit. This proves to be harder and more dangerous than envisioned.
The core of the plot, the creation of a one-stop-shop for all types of cybercrime, is not merely possible, it would seem implausible for it not to be occurring somewhere. There are so many warnings about online scams, phishing and such like, but they don’t appear to be heeded by so many. The author does an excellent job in pulling so many strands with these frauds together into such an intelligent and thoughtful narrative. Fake QR codes posted on carpark signs, how many of us would consider that.
The storyline is packed with drama and surprise. Danger comes earlier than one might expect, before building up to the final jeopardy at the conclusion. It is a well crafty thriller in keeping with the understated British style, but still one that packs a punch. Luke is a man not adverse to taking the odd risk, but clearly working at Filcher’s is stretching him more than police work ever did.
The varied cast of regular characters work so well together and in keeping with the previous stories they bring delightful vein of humour throughout. Joshy takes a bit more of a backseat this time, but his moments, included one with a green female are a delight. Glen Baker, Filcher’s Head of Security and wannabe Chippendale, is on hand to mangle the English language like nobody else, but PI Misty Mitchell manages go one better. A formidably built woman, one working in a predominantly male sphere of operations, she is very much from the no nonsense school of private detectives. She is also a master of the putdown and is no stranger to the amusingly coarse turn of phrase.
Ambrose Filcher calls Luke and Edward Filcher (Luke’s pompous and ever bumbling boss and Ambose’s nephew) to a confidential meeting. Also present are Jean Scarratt an Assistant Chief Constable and Dominic Watts a cybercrime expert from the National Crime Agency. The NCA have finally made a breakthrough in tracking down a major cybercrime enabler. This was thanks to an uncharacteristic lapse in the use of a VPN, a simple error made only once, but one that revealed their true IP address. This points to it being a member of the Filchers IT department, and they can narrow it down even further to a group of six users. It is agreed that, once again, Luke will work with the police on secondment as a civilian advisor, to track down the culprit. This proves to be harder and more dangerous than envisioned.
The core of the plot, the creation of a one-stop-shop for all types of cybercrime, is not merely possible, it would seem implausible for it not to be occurring somewhere. There are so many warnings about online scams, phishing and such like, but they don’t appear to be heeded by so many. The author does an excellent job in pulling so many strands with these frauds together into such an intelligent and thoughtful narrative. Fake QR codes posted on carpark signs, how many of us would consider that.
The storyline is packed with drama and surprise. Danger comes earlier than one might expect, before building up to the final jeopardy at the conclusion. It is a well crafty thriller in keeping with the understated British style, but still one that packs a punch. Luke is a man not adverse to taking the odd risk, but clearly working at Filcher’s is stretching him more than police work ever did.
The varied cast of regular characters work so well together and in keeping with the previous stories they bring delightful vein of humour throughout. Joshy takes a bit more of a backseat this time, but his moments, included one with a green female are a delight. Glen Baker, Filcher’s Head of Security and wannabe Chippendale, is on hand to mangle the English language like nobody else, but PI Misty Mitchell manages go one better. A formidably built woman, one working in a predominantly male sphere of operations, she is very much from the no nonsense school of private detectives. She is also a master of the putdown and is no stranger to the amusingly coarse turn of phrase.
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