http://www.amazon.com/Last-Challenge-Northern-Witches-Book-ebook/dp/B00L2RFDE8
$0.99 (regularly $3.99) 7/1/2016 - 7/7/2016!
Seeing is believing, so they say. So does not seeing, apparently, because it was only when Lauren didn't see the batty old woman standing in front of her anymore that she finally began to believe that maybe, just maybe, witches did exist. The fact that she was one of them was the bit she had real trouble with.
That, and the fact that three condemned souls wanted her dead!