A few hours before they were found by the Space Pirates...
A spacecraft carrying passengers was traveling to the Imperium Star as usual. Before reaching the Main Star, they would go from one Star to the next. Megan Shelley, who had just concluded his vacation and was getting ready to go back to school, was one of the passengers on the Civilian Spaceship. Since the majority of the communication equipment needed to convey messages to other worlds was targeted and destroyed by the Black Ant Zerg Swarm, no one was able to spread the word about the unexpected invasion on Imperium Star.
Because of this, the students who left the Main Star were unaware of the invasion but nonetheless made preparations to return to the Imperium Star as scheduled. The most of them perished before they even reached the Imperium Star, and Megan Shelley was unlucky enough to be targeted by a space pirate even before they reached the coordinates before the final space jump to the Main Star.