The Silence of Triton: Book Two of The Quicksilver Chronicles

Fighting to balance life, relationships, school and his role as Commander of the Quicksilver, Wynter Barnes, sinks deeper into a terrifying world of ruthless aliens and evil terrorists. With two of his crew mates abducted by the brutal alien race called, the Blighters, Wynter faces the greatest fight of his life. He is forced to take measures so desperate that failure means total annihilation not only for Earth, but countless other worlds as well.
All the while, Wynter must decide whether or not he should keep the existence of the Quicksilver secret or reveal the powerful warship to the world.