It had potential, to be honest. Something was off though, and it constantly felt like something was missing. As weird as this is going to sound though, to me, it read like a children's book in a strange way. I don't know how to explain it. I just couldn't grasp the scenery with a clear view, or the creatures. The details given weren't enough for my brain, I suppose. All of the disconnect made it impossible for me to be enthralled, and it took me longer to read since I was able to stop at any time.
Another thing is that in each story/period there were some misleading hints pointing to more, but more never came. In the first two, it is mentioned that she feels someone or something watching her, and in neither of these chapters was this ever pursued. Nothing came of it. I sat there wondering why it would be mentioned, but it was simply nothing, that was never to be discussed again.
Proof: In the first one, Isabella feels the hair on her body rising at the feeling of being watched. She happens upon the deer, so it wasn't the deer watching her as she made her way through the woods, yet that feeling was never explained. In the second one, she is rapidly chasing a ghost down a empty corridor and feels something watching her, but again nothing.
Well, in the final chapter they discuss how the story that Isabella told the children, and the one they were actually taught named the magical creature differently. At first, finding out why seemed very important as she decides to ask about it, then the whole thing just sort of dropped into a dark hole somewhere. Never to be seen again.
I should explain why this is particularly frustrating to me. I am very much all about details when I read and watch things. I am also that way when I speak to people. I look for signs that lead to a reasonable conclusion, including body language and even the most minute details. I'm usually the friend that figures out the end of the movie before it happens and I'm instantly bored upon doing so (only Scooby-Doo has ever thwarted me). The fact that I was presented with a trail that cuts off inexplicably drives me a tad mad.
I know all I've done is give the bad, but this story does truly have potential. I'm glad it was a lovely deer and not the wolf itself (saved me from a cliche). I just needed more detail in the writing about the places, people, clothing... and year. There wasn't as much dialogue to go by, in all honestly. I barely understood and grasped who the main characters were, and their personalities. As far as I could tell it was about a clumsy witch (who was the more fleshed out one of the two) and a very silent deer.
I did find myself laughing at some dialogue, usually involving Isabella's familiar who seemed to have the most personality. I hope my long-winded review doesn't turn someone away from giving it a shot. My father used to always tell me "different strokes for different folks", so perhaps you should give it a try.