As a collector of escape compasses and escape maps, I was aware that Clayton Hutton was the inventor of many escape aids, but detailed and reliable historical information had always been hard to obtain. From what I had been able to find out online, I write two articles for this web site on escape maps and escape compasses. Now, about five years later, I find out that Hutton himself wrote a book about it. It contains a wealth of new information to enrich my articles (still to do). Hutton writes with typical British phlegm, which makes for enjoyable reading. I stumbled upon this book on eBay. A beautiful green leather bound book, first (and only?) edition, for just £7!