Alba, a young schoolgirl who loves reading, receives a curious little book from a stranger who says he comes from the Other Side of the Air.
What strange world is he talking about? Who are the Zotres with their terrifying shadows and why do they seem to want this object back?
When the word “book” is synonymous with freedom, we understand how precious this one must be and why it has to be protected, even if it means risking your life.
Alba and her friend Alex have to fight with all their strength to escape the shadows from the Other Side of the Air.
Can they, on their own, save our world from the coming threat?