Edge Chronicles 4 - The Curse of the Gloamglozer

Quint, the teenage son of a sky pirate, is apprenticed to Maris's father, Linius Pallitax, the High Academe of the floating city of Sanctaphrax. During the day, Quint endures tedious studies, but at night, he is sent on mysterious errands. As his master becomes increasingly distraught and distant, Quint realizes that the man is involved in something terrible that may put Sanctaphrax at risk. With the help of Maris, he learns the truth about Linius's secret endeavors and ensures the safety of the city.