Favorite character, what they believe in? Cassie, and she just wants the truth about her sister's death and her ability to see things.
Hope in the end? I feel hope that everything will be finished when the author writes a second book. This time around the ending wasn't exactly an ending.
Concerns about book? The open ending, feel readers will not understand everything or leave bad reviews because of the way it ended.
Disclosure: I received a review copy of this book from the author.