The Boneyards of Nebula - Sons of Neptune, #4

The Sons of Neptune Saga continues: A distress call is intercepted from a dark anomaly in space, a starship graveyard known as the Boneyards of Nebula. The Praihawk sails to answer the call; they will be the first humans to cross into the zone in over a century. Meanwhile, creatures overrun Starbase 21, and Lusus tightens his grip on both Earth and Neptune. These events are intricately tied together, and will bring the Earthlings back into a war they thought was long over.
A new mystery, a new weapon, and a horde of new enemies. Everyone on Earth and in space - men, spiders and creatures - must pull together one last time. The exciting conclusion to the science fiction series: Sons of Neptune.