The Shadow Within by S.L. Madden
Approx. 71,270 words.
Published on August 20, 2013.
The Shadow Within is the follow-up to 2011's The Shadow Walker, and is part two of the Unseen Things trilogy. It centers around Allison Bramer, a 19-year-old girl who finds herself thrust into a survival situation. But even as she battles the elements, there are other, darker forces at play.