For readers in UK, Germany and France, you can buy Fire and Cross in paperback via Amazon now. It's taken a bit of time to get them listed. But they are there. Remember, do post a review if you like the book. Or tag it to help others to find it.
For readers from other countries, you can ask your bookshops or libraries to order it as it is available via Ingram, the largest book distributor in the world. Just remember to tell them the ISBN number of 978-0-9806105-7-4. Happy reading!
Here are the links on my website.