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.
The Youtini Expanded Universe Ranking system is a 1-5 scale that ranks EU book quality, difficulty, and importance. Books closer to Level 1 are easier to read and understand, more important, and of higher quality.
The Imperial Star Destroyer Liquidator is quickly approaching the Rebel base on Yavin Four. It is part of an Imperial plan to control hyperspace—and crush the Rebellion. To prevent the Empire from carrying out this evil deed, the Rebels must locate the Imperial forces without being discovered. Your mission: to stop the Liquidator…and get out of Yavin Four alive!