How did Harry Potter and the Deathly Hallows end?

Answer 1

Voldemort decides to start checking on his Horcruxes after discovering Harry is destroying them. He accidentally reveals to Harry where the last Horcrux is, and the trio end up back at Hogwarts. Neville summons the old DA members who tell the Order of the Phoenix and everybody arrives at Hogwarts ready to fight.

Snape jumps out a window, leaving his post as headmaster, to find Voldemort. The other teachers set up defenses around Hogwarts and everybody is called to the Great Hall. McGonagall tells everybody who is under sixteen that they must leave (but several don't), and everybody gets ready to fight. Several major characters are killed in the first wave of the battle: Remus Lupin, Nymphadora Tonks, and Fred Weasley.

Harry, Ron and Hermione witness Voldemort killing Snape whom he thinks is the owner of the Elder Wand. Before Snape dies he gives Harry his memories. Voldemort tells his Death Eaters to stop fighting for one hour and if Harry doesn't come to him in that time they will kill everybody. Harry watches the memories and discovers that Snape was on their side and was a spy for Dumbledore. Harry also discovers that he has to give himself over to Voldemort because there is a Horcrux inside him.

Harry goes to Voldemort hiding his wand and invisibility cloak so he can't defend himself. Voldemort hits Harry with the killing curse and Harry goes to an in between place where he talks with Dumbledore who explains all the loose ends.

The battle resumes as the parents of many Hogwarts students and residents of the nearby village Hogsmeade arrive to reinforce the Order of the Phoenix. Many of the Death Eater's die, Bellatrix Lestrange being one of them. With the last Horcrux destroyed, Harry steps forward and reveals 'the flaw in the plan' which will allow him to kill Voldemort.

As Draco was supposed to kill Dumbledore the wand recognised him as the owner. Harry had already taken Draco's wand from him therefore Harry was the owner of the Elder Wand. Voldemort sends the killing curse towards Harry once more but Harry uses Expelliarmus to backfire the curse. The Elder wand recognises it's true master, flies out of Voldemort's hand and lands in Harry's. The backfired curse then hits him, killing Voldemort.

Nineteen years later, Harry is married to Ginny and they have three children; James Sirius, Albus Severus and Lily Luna. Ron and Hermione are married and have two children Rose and Hugo. Peace has returned to the wizarding world and "all is well."