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.
Corran Horn is deep in enemy territory, imprisoned on the Super Star Destroyer Lusankya. The mission to liberate Coruscant, the symbolic hub world of the galaxy, is a ticking time bomb of disease and death. At the heart of The Krytos Trap is the trial of Imperial pilot-turned-Rogue Tycho Celchu. With fellow Rogue pilot and Twi’lek lawyer Nawara Ben in his defense, they must prove his innocence of betraying the New Republic. At stake are countless lives on the planet of Coruscant, as well as the honor of Rogue Squadron itself.