On Goodreads, I changed my star rating from four (Which would be more like 4.75) to five to four again, and ended up changing it back before I finished. The only thing holding me back from the full five *Amazing* there was that I had a little trouble (when I stopped to think about it) believing these characters I adore from the other books were eighteen here. That's a *very* small quibble.
For the rest of it, I read all but the first couple chapters in one sitting, and was pretty much riveted to the book. Finally learning what happened between Ben and Charlotte was heartbreaking.
The author deals with a tragic and authentic event with just the right amount of weight: not so heavy-handed that the reader breaks, but by no means so lightly that it doesn't have substance. (I don't want to spoil anything, so I'm being incredibly vague, I know.)
As I said, I didn't quite think of the cast as being eighteen, but it was nice to catch glimpses of the original crew all as they prepare to embark on adulthood, personalities we know and love intact.
I did have a moment while "with" Ben when I deflated for his sake, realizing where things were headed, and I was not sure if he would or even should recover. I was never so glad to be wrong, although what did happen was still...heartbreaking. I'm using that word a lot, but that's the tone of the book.
Chasing Tomorrow is a must read if you are a fan of Summer Lake, but it is not a standalone. You don't want to miss the other books, which set up why this book is so important. SJ McCoy just keeps getting better. This book is well written and clean, and while it is short, it is a most excellent way to spend a couple hours.