Summer was creeping over the grounds around the castle; sky and lake alike turned periwinkle blue and flowers large as cabbages burst into bloom in the greenhouses. But with no Hermione nattering at her friends to study it was all wrong.Exams were still on and they pushed themselves into work. One night at dinner, an announcement was made. Professor McGonagall said, "Professor Sprout has informed me that the Mandrakes are ready for cutting at last. Tonight, we will be able to revive those people who have been Petrified. I need hardly remind you all that one of them may well be able to tell us who, or what, attacked them. I am hopeful that this dreadful year will end with our catching the culprit."