This is by far the strongest of the first three of Adrian Magson's 'Riley/Palmer' crime novels, in my opinion. The characterisation leaps forward, the plot is tight and its a grimly real subject with elements of mystery and threat.
You sense Magson's development here keenly, his descriptive powers relaxing and improving, and real growth in the writing so that the pages slip by with astonishing rapidity. There is an occasional turn that clunks, my favourite line being on p91, "a leaden feeling was growing in her stomach". There are still one or two doubts about the consistency of the characters' dialogue but these are minor points.
Magson's competency at handling the minor characters means he weaves in some culturally difference while still convincing us they are real. This greatly improves on his previous works. And on top of that, he creates genuine moments of pathos.
It's a compelling, skilfully delivered tale, all the aspects are well-delivered and it reinforces the impression you get that this is a TV series just waiting to happen.