About the book: 2019 / Exillium is a school for young criminals, its name scares students. No one gets into it voluntarily, and Sophie is looking for any opportunity to transfer there. Hidden in Exillium are the answers to questions on which not only Sophie’s life depends, but also the very existence of the Forgotten Cities. Just transferring is the easiest thing. To begin with, you simply need to survive at school, because its motto is “Everyone for himself”! PS: in the Russian version the book is also published under the title “Invisibles”"