Greg Keyes 
Independence Day: Crucible 
The Official Prequel Novel to Independence Day Resurgence

In the days following the alien invasion the international community recovers and builds up Earth’s defenses using technology salvaged from remains of the enemy forces. However pockets of aliens still must be located and eliminated and the bizarre technology proves as dangerous as its creators. Then it’s discovered that the aliens were able to send a distress signal before their final defeat…

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Greg Keyes is the New York Times best-selling author of the novels The Waterborn The Blackgod plus The Age of Unreason tetralogy. He has also written the Star Wars: New Jedi Order novels Edge of Victory I: Conquest Edge of Victory II: Rebirth and The Final Prophecy as well as tie-ins to the popular Elder Scrolls video game franchise. He lives in Savannah Georgia.