After killing the humans, the Silencer sits back to wait for the day the alien mothership drops the Final Wave, the green bombs that will complete the destruction of humanity and complete the Others' plans for Earth. One of them, a priest, turns out to be a Silencer, a human physically enhanced by an implanted neural chip (part of the Other's '12th System') that also makes them believe they are Others. A band of survivors hides in caves near Urbana, Ohio.
In the present, the remaining human population tries to avoid run ins with the 'Others', the aliens that have wiped out most of humanity. Amazed by a starry spectacle the administrators displayed, he decides then and there to name a future daughter after Cassiopeia. The story opens with a flashback of Cassie Sullivan's dad, when he was a kid on a school field trip to a planetarium. Unlike the first two books, the book received mixed-to-negative reviews from critics, who criticized the ending.
The Last Star concludes the story of 16-year-old Cassiopeia 'Cassie' Sullivan, battling against the aliens that have invaded Earth. The novel is the third and final in The 5th Wave trilogy, preceded by The Infinite Sea. The Last Star is a young adult science fiction novel written by American author Rick Yancey. Print ( hardcover and paperback), e-book, audiobook