If you scroll down this page and look at the right-most column, you will see that The Dark and Forbidding Land (Senta and the Steel Dragon Book 2) is now available in Trade Paperback for $13.99.  On a related note: my son just finished it and pronounced it the best in the series so far.

http://rcm.amazon.com/e/cm?t=citofama-20&o=1&p=8&l=bpl&asins=B0045Y2622&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr