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.
Tensions are high in this galaxy far, far away for Doctor Aphra. She's got a new master holding her reins…and he's a Triple-threat. Also – Magna Tolvan. Friend or foe?!