A Jedi, A Timelord, and A Death Star

Ever since the ruthless Empire took over, the galaxy had been in turmoil. An Open Rebellion was growing in strength, and was now prepared to make the ultimate strike. But a terrible turn of events leads to the failure of the Rebel strike. If things weren't bad enough, a mysterious man with knowledge far beyond that of Rebel leaders has turned up. If the Rebel soldiers aren't carful, this man could cause the collapse of the Rebellion from the inside out.