Air Pirates - All Hell Breaks Loose in the Sky (Air Pirates, Vol. 2)

The fantastic, poetic aerial adventure for ages 9 and up finally continues: children's literature at the highest level from award-winning author Markus Orths.
Air pirates are not to be trifled with: The gray-skinned guys like to rant and thunder for a living. But woe betide them when their rage heats up as much as it does with Donna Brubu! She literally screams her head off. And once such an air pirate's soul is free, it develops a completely sinister life of its own. Zwolle needs the help of all his friends, has to outgrow himself and overcome his fear in order to avert disaster.
Back to the unique cloud world of the air pirates, enchantingly illustrated in two colors by Lena Winkel.