I've been a big fan of Kotaro Isaka since reading Bullet Train (which was then 'Hollywoodised' in an entertaining enough film that went for big crashes and explosions with a pretty much completely western cast when really the book worked better). I enjoyed his follow up, Three Assassins - another tale of contract killers in Tokyo, so I was thrilled to get a copy of his new book The Mantis.
The protagonist of the novel, Kabuto, is a father, husband, office worker and assassin. The order of his responsibilities is the core of the novel. Kabuto wants out of the killing business. His doctor, who hands out prescriptions to him, is insistent he does not stop his 'treatment'. Oh, and the doctor is his handler, the prescriptions are jobs, and if Kabuto does stop 'treatment', he and his family could be at serious risk...
There are call backs to the previous novels and key characters - we're in some sort of Isaka universe here where one might start to think you can't visit Tokyo without every second person being a killer of some sort.
There are similar themes explored in the previous books - family duty and honour, disaffection with one's role in life, And of course, hit jobs.
But The Mantis is, for me, the strongest of Isaka's works in English so far. It's a very good translation - as were the other books, that captures the Japanese style and essence, while being, I would say, more accessible than Three Assassins. It's also, stylistically, more adventurous than the previous books. There's a 'twist' 60% through the books that affects everything and everyone in the story, and how we read the book that really worked for me. (No spoilers). For western readers there are a couple of key elements that might be considered 'tropes' or 'cliiches'. But viewing through the lens of Japanese, these are challenging and quite different from anything else I have read.
There's the same dark humour and deceptively simplistic dialogue mixed in with some philosophical and historical ponderings that I really enjoyed. Kabuto is a likable, if emotionally schizophrenic, character - probably more closely drawn than any of the others I've read in Isaka's books, and by moving away from ensemble killer casts to focus on an individual, this felt like a different enough take on the assassin to keep me engaged throughout.
Like all of Isaka's books, I found this a fast, (mostly) fun read and I look forward to seeing what comes next.