This was a good continuation to the series. It's not as strong as the prior novels, but the secrets revealed push it up there. If you've been reading the Skyward novels then this one is a must as you get a better understanding of cytonics and learn what delvers actually are.

Check out my full review at my blog: strakul.blogspot.com/2021/12/book-review-cytonic-by-brandon-sanderson.html