Vernon and Petunia Dursley have a secret - they're related to magical people. Ugh! If anyone ever found out! Then on Halloween, a mysterious stranger turns up on a flying motorbike. Not a good day for those wholesome Surrey folk.

Sirius comes across James ... but in what state?

The Potter children join the Black children for a day out.

Lily and Selina go to Hogwarts for the entrance exam.

After an altercation with the fiery Miss Black, Harry and Selina continue their shopping, meet a very famous boy, and Harry discovers what surprise his father's got planned.

The fur flies at the Blacks' when the Potters arrive for Harry's birthday dinner.

Harry, Ron and the others are excited about the thought of meeting Neville Longbottom, the Boy Who Lived. But when they do, he's accompanied by someone rather annoying. Her name? Hermione Granger. And if that weren't enough, Catherine's making enemies already - and she hasn't even got to school yet!

The Gryffindors are dreading their first Potions lesson, after what everyone's told them about Professor Snape. And, surprise surprise - Catherine's fighting with people again.

Neville suffers yet more bullying from the Slytherins, stolen Remembralls and cursed broomsticks make their first flying lesson ... interesting. Meanwhile, Harry and Catherine are working hard in preparation for the imminent duel with Malfoy.

Having made a narrow escape from Fluffy, our heroes now have a troll to contend with!