Keepers. The Ice Desert

A new threat looms over the Book World: the main characters from the greatest works of all time are mysteriously disappearing, without whom any book is doomed to be forgotten. And one day, the Chief Keeper himself goes missing!
Zhenya and Olya must cast aside their fears and remember everything they have learned from previous adventures, figure out what is happening, make new friends, and fight against the most dastardly villains of the Book World.
For middle school age.