Khroniki Kraia. Poslednii vozdushnyi pirat - Riddell Kris, Stiuart P.

A young assistant librarian, Dodger Koroder, can only dream of the possibility of leaving the Lower City. Who would think of electing him, a foundling found in the nest of fat-footed people many years ago, the Library Knight?
But the Supreme Librarians saw in the boy a lively mind, sharp observation and a kind heart. And now the young Pluto is waiting for the famous city of Sanctuarx, the terrible Great Top and, of course, the Dark Forests.
"Chronicles of the Edge" (also known as "Air Pirates") is one of the most interesting adventure series for teenagers.