BBY/ABY is used to position items along the Star Wars Timeline. BBY refers to Before the Battle of Yavin. ABY refers to After the Battle of Yavin. The Battle of Yavin in Episode IV: A New Hope occured in 0 BBY/ABY.
Mara Jade is cunning, ruthless, sneaky, and powerful–all essential traits for Emperor Palpatine’s secret spy and assassin! Beginning with Mara’s mission to eliminate Luke Skywalker by infiltrating Jabba’s Palace at the beginning of Return of the Jedi, By the Emperor’s Hand tells what comes next-she must take down the leader of the notorious Black Sun organization.
Mara Jade is beautiful, intelligent—and deadly! She is the personal assassin of the Empire's dark overlord. But after the Emperor's death, an unforeseen variable is about to enter the scene of her final mission, the assassination of the leader of the Black Nebula crime organization. Though her master is dead, Jade must complete her final mission… even if it costs her life!