Jack Campbell 
Relentless [EPUB ebook] 

Captain "Black Jack" Geary has led the Alliance fleet through Syndicate Worlds space, frustrating the enemy at every turn during the long journey home. Alliance prisoners of war are being held in a labor camp in the Heradao Star System, which also happens to be the location of the majority of the surviving Syndic warships. Determined not to leave any of his people behind, Geary orders the fleet to strike hard and fast to rescue the POWs with minimal Alliance losses. With saboteurs from within his own ranks still threatening the security of the fleet, Geary knows he has to succeed. A brand-new edition of the bestselling novel containing unique bonus material from the author.