Alliance Armada Audiobook (Free)

After fending off the Adjudicator attack, the Alliance discovers the fact that enemy is preparing a final, exterminating push against the human systems and their allies, the Hroom Empire. To get period while building their makes, the allies send out Captain Jess Tolvern and her occasionally rival, the former pirate Catarina Vargus, in command of the fleet to raid and reconnoiter the aliens’ own home worlds.

They cross the inner frontier into systems torn by novas and black holes to find the aliens, who have hidden themselves within a previously undiscovered system, where they may be awakening a historical machine with the ability of devouring entire starships.