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.
Uncle Hoole wants to study the S'krrr--a race of creatures that look like giant bugs. While Hoole works, Zak and Tash visit the S'krrr's huge garden--it's the most beautiful place they have ever seen. It's also full of very strange creatures. When a batlike shreev swoops down at Zak, he panics and accidentally kills it. Suddenly, the garden is overrun by big beetles. When Zak wakes up in the middle of the night covered with creepy crawly bugs, he's terrified. Did Zak upset the garden's delicate ecological balance by killing the shreev? Or is something far more sinister at work?