All classes have been canceled as said by our head master. Meanwhile, go to the corridor and learn all the spells! Triwizard tournament is just round to corner. Without knowing the spells, you will not survive!! This is Real SERIOUS! I do not want another Cedric Diggory in Gryffindor!

* in case you don't know, Cedric Diggory is the boy who died due to the Triwizard tournament.