On her way to the east building library to find some reference books, Catarina joins up with the usual gang, and they decide to have a study session together. Then she opens a book that caught her eye... and it suddenly fills the room with light, then swallows her up along with Geordo and the others. Only Mary and Maria are left behind, so they cautiously open the book to try to rescue Catarina and the others trapped inside.
...this book, which is one 
of the school's seven mysteries...
...هذا الكتاب الذي يمثل أحد ألغاز المدرسة السبعة
… dieses Buch war eines der
sieben Akademie-Mysterien …
¿El libro es uno
de los siete misterios de la academia?
¿El libro es uno
de los siete misterios de la academia?
… dans ce grimoire,
qui est l’un des sept mystères ?
...che questo libro magico, che è uno dei sette misteri...
...esse livro, um dos
sete mistérios da escola...
Мы были внутри одной из тайн Академии,
в этом гримуаре?