Mission to Methone

"The year is 2065 and an accidental encounter in space leads to the discovery that we are not alone and that our continued existence may be in jeopardy. Chris Holt, working at the Space Resources Corp., discovers that one of the asteroids he surveying for mining is actually a derelict spaceship. What Earth doesn't know is that across the galaxy, a war has been underway for millennia. A war between alien civilizations that have very different ideas about what should be done about emerging spacefaring civilizations like our own. The artificial intelligence resident in the derelict has been in our solar system since before the dawn of human civilization, watching, waiting and keeping quiet lest the war return and wipe out humanity"--