This series is one of my favorites and if you haven't started it yet...do it now. In Time is a novella that covers a part of what happens from the time Zu leaves the group and when Gabe runs into her. I won't go into a ton of detail here but this is definitely one you should read if you enjoy the storyline with Zu. Bracken also magically tied it all together with The Darkest Minds and Never Fade without even including Liam and Ruby. Gabe is an interesting lead in this story and I loved seeing him change.I am very interested to see how it all ties together with book 3...since I already knows what happens in Never Fade, I have a feeling I am going to have to wait a long time to get back into this part of the story. Unless...there just happens to be another novella coming out with these characters. I would fully support that decision.Go check this one out and be sure you read book one and two as well!