Harry Potter and the Dealthy Hallows is the seventh and final book in J.K. Rowlings Harry Potter series. Voldemort is continuing to accumulate power and it is up to Harry, Ron, and Hermoine to find the remaining Horcruxes to defeat him once and for all. When the Death Eaters descend upon Hogwarts, it leads to a battle that will affect the future of the wizarding world forever.
Harry is devastated by Dobby’s death, and when he buries him he does so by hand, without using magic. When they all come out to lay Dobby to rest, they thank him for saving their lives.
After the funeral, Harry questions Griphook about the sword, with which he managed to escape. Harry needs Griphook to help him break into Gringotts bank, because he now thinks that another Horcrux is hidden in Bellatrix Lestrange’s vault. Griphook tells them he’ll think about helping them and let them know when he decides.
Harry also questions the wandmaker, Ollivander, asking him if it’s possible to fix his broken wand. Ollivander cannot fix it. Ollivander does tell him, however, that Voldemort really is seeking the Elder Wand so he can evade death.
Soon after questioning Ollivander, Harry begins to truly understand what he’s meant to do. He’s supposed to destroy the Horcruxes and not go after the Elder Wand. He then has a vision of what Voldemort’s doing. Voldemort is at Hogwarts and has figured out that Dumbledore was the possessor of the Elder Wand. He breaks open Dumbledore’s tomb and takes the wand for himself.