2.5 stars. I really wanted to like this book. I had seen so many wonderful reviews and the concept was very intriguing. Unfortunately, I feel like the potential this book had wasn't realized.

The 'plot' (what there is of it) isn't very easy to explain without getting spoilery. There is a school filled with children who had returned to our world after discovering and living in alternate universes and they are trying to find their way back.

What I liked about this book:
1. I feel like this book had a lot of potential. The concept was original and interesting.
2. The diversity of the characters. There are several minorities represented in this book and for the most part I didn't feel like it was forced.
3. The cover. So simple, but beautiful and peaceful as well.

What I didn't like about this book:
1. The characters. I just couldn't connect to any character at all. While there was diversity, which was wonderful, the character development was sorely lacking. There was no depth to them at all, and several threads that were set up in the book were never paid off.

2. The world-building was just okay. This book is supposed to take place in our world, but the book takes place solely on the school grounds. I would've loved the author to delve into more detail about the different worlds that people were from. The little glimpses we got through different group sessions was definitely the most intriguing part of the book. Unfortunately they were few and far between.

3. I didn't enjoy this style of writing. There was too much telling, not showing. The end of the book wraps up a big mystery in the course of a couple pages in a way that was not at all satisfying, in my opinion. A few pages after that, the book abruptly ends. I assume this is to leave the door open (no pun intended) for further books with these characters, but I don't think I will be seeking them out.