<P> The story begins as Jack (usually referred to in the novel as "the man Jack") murders most of the members of a family (later revealed to be the Dorian family) except for the toddler upstairs . Unknown to him, the toddler has climbed out of his crib to explore . The toddler crawls out of the house and up a hill to a graveyard where the ghosts find him . They discuss whether to keep him until the Lady on the Grey (implied to be the Angel of Death) appears and suggests that the baby should be kept ("The dead should have charity"). The ghosts accept, and Mrs. Owens (the ghost who first discovered the baby) and her husband, Mr. Owens, become the foster parents . The baby is named Nobody Owens (since Mrs. Owens declares "He looks like nobody except himself") and is granted the Freedom of the Graveyard, which allows Nobody to pass through solid objects when in the graveyard, including its gates . The caretaker Silas (subsequently implied to be an ancient and formerly evil vampire, now reformed) accepts the duty of providing for Nobody . The man Jack is persuaded by Silas that the toddler has crawled down the hill, and he eventually loses the trail . </P> <P> The bulk of the book is about Nobody's (often called Bod) adventures in and out of the graveyard as he grows up . As a boy, he befriends a girl called Scarlett Perkins, and she is eventually convinced by her mother that he is her imaginary friend . It is with her that Bod discovers a creature called the Sleer, who has been waiting for thousands of years for his "Master" to come and reclaim him . The Sleer's greatest duty is to protect the Master and his treasure from the world . Scarlett's parents believe she has gone missing during this adventure and when she returns, consequently decide to move the family to Scotland . Nobody is once captured by the Ghouls and then rescued by his tutor Miss Lupescu, discovering she is a Hound of God (i.e. a werewolf). Bod befriends Elizabeth Hempstock, the ghost of an unjustly executed witch and through a short adventure that includes being kidnapped by a greedy pawnshop owner, finds a gravestone for her . Once he tries to attend regular primary school with other human children, but it ends in a disaster when two bullies make it impossible for him to maintain a low profile . Throughout his adventures, Bod learns supernatural abilities such as Fading (allows Bod to turn invisible, but only if no one is paying attention to him), Haunting (which allows Bod to make people feel uneasy, though this ability can be amplified to terrify them), and Dream Walking (going into others' dreams and controlling the dream, though he cannot cause physical harm). These abilities are taught to Bod by his loving graveyard parents, his ghost teacher Mr. Pennyworth, and Silas . </P> <P> Years pass by, and it is revealed that Jack has still been searching for the toddler that he had failed to kill . He must complete his assignment or his ancient, secret society, the Jacks of All Trades, will be destroyed by the surviving boy . It is revealed that Jack originally went to kill the Dorian family because of a prophecy which stated that Bod would destroy the Jacks of All Trades . </P> <P> On Bod's 14th year at the graveyard, Silas and Miss Lupescu both leave to attend some business . Meanwhile, Scarlett and her mother come back to the town after her parents got divorced, and she and Bod reunite . Scarlett has also made friends with a historian called Mr. Jay Frost who is living in a house not too far from the graveyard . Researching the murder of Bod's family, Scarlett learns that the historian lives in the house that Bod once lived in . Bod visits the house, in an effort to learn more about his family . When showing Bod the room he lived in as a baby, Mr. Frost reveals that he actually is the man Jack; Jack Frost is his full, true name . </P>

Why did jack kill bod's family in the graveyard book
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