Having rediscovered contemporary thriller fiction in the past two years, I have read some of the "best" books around. I stumbled on this one, knew little of Lionel Davidson but I am now after all his books. Absolutely brilliant - the pace, the detail, the storyline, the intellectual challenge to the reader. Once the issue has been identified we have two wonderfully scripted scenarios, the getting in and the getting out. Each in its own way is a separate adventure with quality descriptive writing creating the most atmospheric of reads. For me this was the best book I have read in the past two years and I would not hestitate to recommend it to those who enjoy adventure fiction. It is stunning.