The Lost Patrol (Lost Starship Series) (Volume 5)

We learned a terrible secret last voyage, the Swarm exists. It has a monstrous imperium, expanding, evolving and receiving incredible Builder tech.
 
Captain Maddox heads into the Deep Beyond to find the Swarm Imperium. We must know the worst so we can prepare against the deadliest species in the galaxy.
 
The captain and his crew battle loneliness and the terror of the unknown as they hunt through the stellar darkness. They're thousands of light-years from home, from any help. What they find threatens their sanity and unity. It's going to take the best Maddox and the ancient AI Galyan has to offer to pull the crew together. They have to save the starship from what waits in the galactic darkness or the human race will die.
 
THE LOST PATROL is the fifth book in the LOST STARSHIP SERIES.