The Unliving Chronicles Bundle: Book 1, 1.2, 1.3, livre audio

This undead collection contains:
1. Peter Green and the Unliving Academy
Fourteen-year-old Peter Green can’t remember how he died.
All he has are his pajamas, a silk tie, and a one-way bus ticket to Mrs. Battisworth’s Academy and Haven for Unliving Boys and Girls, a strange and spooky school for dead orphans like himself.
As Pete learns to fit in with his new supernatural schoolmates, he starts to discover his own uniquely undead abilities, and even begins enjoying his life after death...but he just can’t shake the feeling that he’s forgotten something (or somebody!) important. Somebody he left behind in the land of the living. Somebody he loved very much.
Somebody who’s in terrible danger. 
2. Peter Green and the Skeleton Crew
Breaking through the veil that separates the dead from the living was just the beginning.?
Peter Green’s exploits in the world of the Unliving have earned him quite the reputation, but some are still questioning if he’s the real deal. In fact, he’s not too sure himself if his first great and successful adventure wasn’t just… a stroke of luck, perhaps??
However, he won’t get any time to figure it out – his uncle needs him and two new friends to venture out on a mission. And not just any mission… Vicious pirates, killer, shape-shifting mermaids, and danger unlike any they’ve ever faced await Peter and his friends. Failure is NOT an option.?
3. Peter Green and the Desert Disaster
Harnessing true power requires a sacrifice.
Pete thinks he understands this... until he's forced to face the consequences.
Barely having survived his last adventure, it isn’t long before Peter Green is cast into peril once more. Thankfully, he seems to be getting a grasp of his “Other” abilities – his magic abilities – and it's starting to give him an edge in the battle against the victims of the otherworld.
But what happens when disaster strikes where it hurts him the most, and I placed his new best friends in great danger?