The main thing which harry potter doesn’t know is the secrets of the magical school.The chamber which was or never had been opened by anyone according to him had once taken up a girl, Jenny Wesley,sister of Harry’s friend, Ronald Wesley who has helped harry over his first year as well.On the journey is Hermione Granger who also is Harry’s friend but has really a lot of attitude.she is very sensitive to anything,but she is very helpful in nature which brings out the speciality of her towards others.The school is run in the name of the Headmaster professor “Dumbeldore” who is very inadequate when it comes to secrets.later harry has to discover many things regarding the issues of the school.