As Noa's condition worsens, she, Peter, Teo, and Daisy remain on the run, but they can't understand how Pike's men keep finding them no matter where they go. After barely escaping their latest hideout right after they moved in, Peter decides they have to find somewhere safe to decrypt and sift through the data that he stole from the Project Persefone computers. Using his hacking skills, Peter takes them to Colorado to find Loki. Meanwhile, Teo and Daisy begin to wonder if they wouldn't be better on their own.
Don't Let Go ties up all the loose ends by the conclusion of the book. The story of the two protagonists comes to an unexpected resolution, leading to some other surprising twists and turns. The plot of the underdog trying to defeat the big, bad corporation has been done before, but details surrounding this story make it unique. Overall, a very satisfying end to the series. ( )

A satisfying and exciting conclusion to the trilogy. ( )

The last of this on-the-run trilogy is fun, though I was having trouble remembering what happened in the other books... ( )