After Shadow Over Avalon, there is Sword of Shadows. The journey continues. What is the second book about? Check the trailer.
http://www.amazon.com/Sword-Shadows-C-N-Lesley-ebook/dp/B00P4HX4SE/ref=sr_1_1?s=digital-text&ie=UTF8&qid=1414956320&sr=1-1