After more than a decade, Lieutenant-Captain Marshall is finally on the trail of his long-lost father, and takes the greatest risk of his career in leading the Battlecruiser Alamo and its crew deep into the territory of the sinister Cabal. Their mission: To retrieve Marshall's father, and recover his ship, the Battlecruiser Hercules, as well as the vital information it contains - information that could be the key to defeating the Cabal. Some secrets, however, are only obtained at a great price... 'Battle of Hercules' is the sixth book in the Battlecruiser Alamo series.