This is a perfect example of a story plot that could be GREAT, but because the author is so damn greedy with info the reader gets frustrated by all the secrecy, so much that by the time things are revealed, (we the readers) really don't care!
Things I got sick of reading:
"I am Ava, just not this Ava, I know her but not This one..."
or how about the author's continuous
"I-- " There was one page that had 3 sentences start off like this. It was very annoying.
One of Two things would have made this book much better.
1. - it needed to be a short story
2. It needed a much longer book with much more INFO about The alternate world she was from