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.
From the moment they landed on the swampy planet Vodran, J-Squadron's mission for Admiral Ackbar has been a disaster—and now Mattis, Lorica, AG-90, and Jo have been captured by the First Order! Can things get any worse? Of course they can: Jo immediately turns traitor and abandons his Resistance squad mates, and AG is taken away to be reprogrammed as a villainous First Order droid. Forced to rely on each other, can the squabbling Mattis and Lorica work together to escape before they are forced to give up Resistance secrets? Meanwhile, Dec and Sari land on a mysterious moon and encounter unexpected inhabitants: a group of outspoken droids and the infamous Harra the Hutt. Harra might be able to help Dec and Sari save their friends, but bargaining with a Hutt rarely goes as planned. These wannabe Resistance heroes will need quick thinking and even quicker moves if they are going to survive!