I read it start to finish, and I was expecting it to have a twist end, wrap up with ties to the previous book, as some hints were there, and when I got to the last page I realized.. Nothing.
A pissy paralegal for no reason at the very end, stupid decisions by Abby, no logic to stuff happening. It felt like someone who wrote textbooks tried to write a thriller and forgot to include the main parts.
The book fell flat. Don't bother, just pretend Mitch and Abby are living their best life in the Bahamas and this never happened.