Graduating cadet'Tohm's first night as an Imperial officer has already seen him assisting'Darth Vader'in fighting a traitorous uprising, saving'Emperor Palpatine'from a deadly plague weapon, and keeping the peace between Vader and the cybernetic'Moff'Trachta! Now Tohm and Vader have infiltrated the deathly stillness of the abandoned Jedi Temple to confront the secrets of Vader's past, and to learn the facts about the Ghost Prison!