In the second part of the Destiny trilogy, the Enterprise and the Aventine work on discovering the wormhole that the Borg are using to invade the Alpha quadrant while the crew of the Titan tries to deal with the Caeliar and their decision to trap them on their world, just as they did hundreds of years ago with the crew of the NX Columbia.

Mack spends most of this middle portion of the trilogy on Erika Hernandez, captain of the Columbia, as she first tries to escape from the Caeliar and then works to assimilate with them, which enables her to live for hundreds of years and encounter Riker and the crew of the Titan.  As a standalone book, this doesn’t have much to offer.  Very little actually happens, as it is mostly setup for the finale.  Hopefully, it all pays off.