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This is the first of the Harry Potter books. J.K. Rowling's first novel, Harry Potter and the Sorcerer's Stone introduces the audience to Harry Potter who is left as a foundling on a doorstep, and his life with the Dursley's (whom he grows up with) is not pleasant for him. However, once he is of age, Hagrid comes to take Harry to Hogwarts School of Witchcraft and Wizardry. Once there he makes friends and begins his formal education in learning about spells and magic.
The main conflict revolves around Voldemort who wants the Sorcerer's Stone and all the power it can afford him. At one point Voldemort attacks Harry in the woods. A centaur Harry meets there tells him about Voldemort's desire to obtain the Sorcerer's Stone, and Harry decides he will get it first.
Toward the end of the novel, Harry goes up to the third-floor corridor that is forbidden to the students. Here Voldemort while in control of Quirrell's body tries to kill Harry. Harry resists Quirrell, and Voldemort demands to see Harry: Voldemort's face is on the back of Quirrell's head. Harry and Voldemort begin to fight.
It is Dumbledore who saves Harry, and he tells Harry that the Sorcerer's Stone will be destroyed. This ends the main conflict of the story.