What is Harry Potter and Dethly of Hallows about?

Answer 1

Following Dumbledore's death, Voldemort has completed his ascension to power and gains control of the Ministry of Magic. Harry, Ron, and Hermione drop out of school to find and destroy Voldemort's remaining Horcruxes. They isolate themselves to ensure the safety of their family and friends. They do not have much knowledge about the remaining Horcruxes except the possibility that two of them are objects that belonged to Hogwarts founders Rowena Ravenclaw and Helga Hufflepuff, and that the third is Nagini, Voldemort's snake familiar. The locations of the two founders' objects are unknown, and Nagini is presumed to be with Voldemort himself. As they search for the Horcruxes, the trio learn details about Dumbledore's past, as well as Snape's true motives.

The trio recover the first of Voldemort's Horcruxes, Salazar Slytherin's locket, by infiltrating the Ministry of Magic. They recover the Sword of Godric Gryffindor; it is one of a few objects that can be used to destroy Horcruxes (being dipped in Basilisk venom), and they use it to destroy the locket. In their travels the trio comes across a strange symbol, which an eccentric wizard named Xenophilius Lovegood (father of Luna) tells them represents the mythical Deathly Hallows. The Hallows are revealed to be three sacred objects: the Resurrection Stone, a stone with the power to recall the dead to the world of the living; the Elder Wand, an unbeatable wand; and an infallible Invisibility Cloak. Harry learns that Voldemort is seeking the Elder Wand, but is unaware of the Hallows and their significance. The trio decides that discovering Voldemort's Horcruxes is more important than procuring the Hallows for themselves. They break into Bellatrix Lestrange's vault at the Wizarding Bank Gringotts to recover another Horcrux, the cup of Helga Hufflepuff. Harry learns that another Horcrux is hidden in Hogwarts, and Harry, Ron, and Hermione enter the school. They find this Horcrux, the Diadem of Ravenclaw, and successfully destroy the cup and the diadem.

The book culminates in the Battle of Hogwarts. Harry, Ron, and Hermione, in conjunction with students and members of the wizarding world opposed to the rise of Voldemort, defend Hogwarts from Voldemort, his Death Eaters, and various magical creatures. Several major characters are killed in the first wave of the battle. Harry discovers that Voldemort inadvertently made Harry a Horcrux when he attacked him as a baby, and that he will have to die to destroy Voldemort. Harry surrenders himself to Voldemort, who attacks Harry with the killing curse, sending Harry to a sort of Limbo between life and death. There, Harry first sees the killed piece of Voldemort's soul, that was attached to him, before meeting Dumbledore who explains that because Voldemort used Harry's blood to regain his full strength, Harry is protected from any harm that Voldemort could commit against him, meaning that the Horcrux inside Harry is destroyed, but Harry can return to his body despite being hit by the Killing Curse. Harry then returns to his body, the battle resumes, and after the last remaining Horcrux is destroyed, Harry is able to defeat Voldemor