A wave of terrorist attacks against both the Federation and the Klingon Empire traces back to the Lembatta Cluster, where the reclusive Renao have long regarded Alpha Quadrant powers as conquering tyrants. Sent to head off a war neither side truly wants, the crew of the newly commissioned USS Prometheus has to uncover who's really pulling the strings before the bloodshed spreads. The opening novel of the German-original Star Trek: Prometheus trilogy.
Summary by Loreful, from public sources