You might enjoy reading a new book about cave exploration in Saudi Arabia. This is a book about caves, lava tubes, camaraderie, Bedouins, bats, wolves, jinns, mummies, ancient bones and adventure beneath the sand dunes of Arabia. Here's the info:
Underground in Arabia
174 pages, 32 illustrations
Selwa Press, 2012
Available in paperback, Kindle and Nook formats.
You'll find it at Amazon.com.
For a book review and photos check out: http://www.saudicaves.com/UinA/index.html
I hope you like it!