Star wars the battle to the end

The rebels attack a imperial communications tower and their leader was captured. The rebels installed a spike in the tower which let all of the planet and nearby systems hear what they say. The rebels attack governer Tarken's star destroyer to regain their leader and they destroyed the inquistor(sith) and the star destroyer. There mission was success but they had no idea what they where up against since the inquistor was destroyed. Darth Vader came out of a shuttle. Then the book ended with a cliff hangar.