On 7 November 2014 my dear publishers, AuthorsOnline, stopped trading. This is a print-on-demand book, so the only copies you can buy are those already printed and held in stock by distributors. You might find a second-hand one.
If you can't buy a proper copy, don't hand over money for a scammy, pirated audio book or ebook, and don't download something from a dodgy website. Click here for a licensed pdf of the text, with my good wishes. No illustrations, I'm afraid. I had permission to use them in the book, but not elsewhere.
You are welcome to email me on frostbytehistory at googlemail dot com