The Planet Thieves2 books in series
The Planet Thieves Publisher's Summary
Young Mason Stark and 17 fellow cadets from the Academy for Earth Space Command (ESC) boarded the SS Egypt for a routine voyage to log their required space hours when they are attacked by the Tremist, an alien race at war with humanity. With the captain and crew dead, injured, or taken prisoner, Mason and the cadets are all that’s left to warn the ESC. Soon they find out the reason the Tremist chose to attack: the Egypt is carrying a weapon that could change the war forever. Mason will have to lead the cadets in a daring assault to take back the ship, rescue the survivors, and recover the weapon - before there isn’t a war left to fight.