Beware of unmarked spoilers, for both this series and canon.
- From a meta perspective, it makes sense why Tom's second Yeerk was killed off halfway through with little fanfare. In canon, Cassie giving him the morphing cube led to the Yeerks and Taxxons deciding to become nothlits at the end of the war. Poetry has made it clear, in both the Daemorphing comments and on their Tumblr blog, that they don't like how two species committing genocide on themselves is portrayed as the happy part of the ending. Killing him off so soon prevents that plot thread from ever getting started.