There was a giant named Hagrid that was helping Harry get his school supplies.
When Harry and Hagrid where getting money to get the school supplies Hagrid took something out of a valt, and would not tell Harry what was in it.
On the trian to go to Hogwarts Harry meet Ron and Hermione.
I'm Hermione Granger, and you are?
Harry read in the newspaper that someone broke into the vault that Hagrid went to. They did some research and found out that Hagrid was taking the stressors stone out of the vault.
During the week they were trying to be extra nice to Qwarl so he would not tell Snape how to get through a three headed dog.
They went to professor Dumbledore and warned him.
They went where the three headed dog is, and went down a trap door. There were plants that smash you, flying keys, a troll, chess, and potions. After that Harry found Quarl trying to find the stone. A few minutes later Harry got the stone and Quarl turned to dust. He just saved the school. Harry was SO excited