As a young adult book it definitely deserves five stars. Made a huge impact on me when I read it as a kid. A nice dabble in dystopias and urban and wilderness survival. Cool book for teens.

Interesting little book, the choices felt rather arbitrary, especially towards the end - Industrial Facility's ‘bottle watch', really? But a fun quick read.

Interesting overview of some lesser known aspects of the POW system. Though short, it was a little repetitive in places, but I did learn quite a lot from it. Worth a read but not outstanding.

Enjoyed this a lot, opened a window into an interesting bit of British scientific history, and as someone who's rather accidentally into watches it had a particular interest. A bit meandering, a bit partisan, but engaging and easy to read. Would recommend!