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.
I understand now. 
You're a great teacher, President Sirius.
.فهمت. كما هو متوقع من الرئيس سيريوس
Nun versteh ich es. Ihr erklärt wirklich
ausgezeichnet, Schülersprecher Sirius.
Me quedó bastante claro.
Enseñas muy bien, Sirius.
Me ha quedado claro.
Enseñas muy bien, Sirius.
Ora è tutto chiaro. Sei un insegnante fantastico, Sirius!
Agora entendi. Você ensina
muito bem, Presidente Sirius.
Спасибо большое, вы хороший учитель!