Children of the Mind by Orson Scott Card -- 370 pages
This is the conclusion of the Ender's Game saga. Several intelligent species are in danger, humans, piggies, buggers, Jane, and the descolata. The only person who has any chance of stopping the Lusitania fleet, sent to destroy the planet, is Jane, who in herself holds the capacity for instantaneous star-flight, and is herself about to be destroyed when all the ansible networks are turned off.
Card explores more theories in this book, especially near the beginning where Peter and Young Val are trying to figure out who and what they are. This thrilled me more than the action that happened later and resolved everything. Every once in awhile I was annoyed by how everything revolves around Ender -- like, everything. But I still enjoyed the read.