This book is written in a very unusual style, being a collection of documents; diaries, police reports, memoirs, letters and e-mails which at first feel rather awkward, but as the book progresses, the reader becomes comfortable with what is a rather original style which makes a fairly average book into something that stands out from others. This construction of the novel means that many of the documents are very personal to the characters, and this means that the characters become quite developed, although the ending perhaps leaves one wanting a little more from some of the main protagonists.
Although this is essentially popular fiction, the author attempts to parody the "spin" culture practiced by government, and achieves some amusing moments in this attempt. The difference in spirituality between Yemeni culture and British culture is also dealt with, and this is highlighted in the changes of personality that the British scientist goes through; this is highlighted in his changing attitude to his loveless marriage.
Overall this is a very readable book, original and with a story that is interesting enough to capture readers and leave them wanting more; in fact it is true that the ending is rather flat after a sensational conclusion to the salmon project.
I would recommend this book to a wide range of readers, particularly those who are disdainful of the culture of "spin" employed by recent governments.