What happens in the last Harry Potter book?
Following Dumbledore’s death, Voldemort completes his ascension to power and gains control of the Ministry of Magic. Harry, Ron, and Hermione leave Hogwarts to hunt and destroy Voldemort’s remaining horcruxes. They isolate themselves to ensure their friends and families’ safety. They have little knowledge about the remaining horcruxes except the possibility that two are objects once belonging to Hogwarts founders Rowena Ravenclaw and Helga Hufflepuff, and the third may be Nagini, Voldemort’s snake familiar. The whereabouts of the two founders’ objects is unknown, and Nagini is presumed to be with Voldemort. As they search for the Horcruxes, the trio learn more about Dumbledore’s past. Harry, Ron, and Hermione recover the first horcrux, Salazar Slytherin’s locket, by infiltrating the Ministry of Magic. Under the object’s evil influence and the stress of being on the run, Ron leaves the others. A mysterious silver doe leads Harry to the Sword of Godric Gryffindor, among the few objects a