Why did the trio plan Break-in into Gringotts Wizarding Bank?
While Bellatrix Lestrange tortured Hermione Granger, she unconsciously feared that Harry, Ron and Hermione have took another object from her vault at Gringotts Wizarding Bank.
Bellatrix Lestrange didn’t only insist on how they got their hands on the Sword of Gryffindor but constantly interrogated Hermione if they’ve took more items from the Lestrange Vault.
Ron, Harry and Hermione concluded that Bellatrix Lestrange must have had another valuable object highly likely another horcrux which was why Bellatrix Lestrange panicked and was afraid.
Bellatrix Lestrange didn’t know that Voldemort gave her a horcrux but kept it safe and sound because of Voldemort’s direct orders.
Voldemort’s Arrival at Malfoy Manor
Bellatrix Lestrange has summoned Voldemort while Ron and Hermione were captured at Malfoy Manor. However, the trio has escaped Malfoy Manor before Voldemort’s arrival.
Voldemort was furious and grounded Bellatrix Lestrange and the Malfoys at the Malfoy Manor after torturing them. In the movie, this process wasn’t introduced but, in the novel, after Voldemort tortured Bellatrix and the Malfoys, he went after the Elder Wand at Albus Dumbledore’s grave with Severus Snape.
Bellatrix Lestrange after being grounded alerts that her wand was stolen by the trio to Gringotts Wizarding Bank.
News spread out that Voldemort severely punished Bellatrix and the Malfoys and the trio has escaped Malfoy Manor successfully.
Hermione’s disguise as Bellatrix Lestrange and the trios depart to Diagon Alley
Hermione Granger makes a Polyjuice potion out of Bellatrix Lestrange’s hair. Ron Weasley was also disguised as a Dragomir Despard while Harry Potter and Griphook hid under the Cloak of Invisibility and head to Diagon Alley to break into Gringotts Wizardry Bank.
Some of the collaborators were surprised to discover Hermione who was disguised as Bellatrix Lestrange because Bellatrix was supposed to be suspended after allowing the trio escape from Malfoy Manor.
Travers, another Death Eater was also surprised and conversated with Hermione as Bellatrix where Harry Potter quickly put him into the Imperius curse in the novel.
Infiltration into Gringotts Wizarding Bank
While the trio and Griphook arrive at the reception of the Gringotts Wizarding Bank, the goblin Bogrod that greeted them at the reception was unusually stalling them and buying time.
Already Gringotts Wizarding Bank knew that Bellatrix Lestrange’s wand was missing and there were rumors of Bellatrix being grounded on Malfoy Manor as a punishment by Voldemort.
Ron who was disguised as Dragomir Despard and Hermione tries to convince the goblins by providing Bellatrix Lestrange’s wand as proof but there was a weird atmosphere in Gringotts bank.
Harry Potter quickly put an Imperius Curse onto Bogrod once again mind controlling him to accept them into the bank
Thief’s Downfall – waterfall that cleansed and disabled all magic
The waterfall that washed away was called the Thief’s Downfall and it was one of the security measures by Gringotts Wizarding Bank.
The trio already sent Travers on the Imperius curse and only took the goblin Bogrod and Griphook. Right after the Imperius curse washed away from Bogrod, Harry put another Imperius curse onto Bogrod.
Lestrange Vault and securities
Not all the vaults in Gringotts Wizarding Bank were under the same security level. Old clients such as the ancient wizarding families and those with heavy investments and savings with Gringotts Wizarding Bank were located deeper than ordinary vaults.
Also, there were different types of security measures. While Harry Potter’s vault, the Potter family vault number 687 required a certain key, the Lestrange family vault didn’t require a key.
However, the Lestrange family vault was placed deeper down the Gringotts Wizarding Bank and guarded by passing the Thief’s Downfall, requiring a whole palm of a goblin (to prevent just cutting off a finger) and there was a Ukranian Ironbelly dragon that was trained to defend the vault in front of it. Also, there were multiple hexes and magic casted for additional security.
Inside the Lestrange Vault & Gemino Curse and the Flagrante Curse
There was a half-blinded Ukranian Ironbelly dragon protecting the Lestrange Vault that wouldn’t attack those who made a loud noise by a bell that resided nearby.
The trio forced Bogrod to open the vault and they’ve started searching a horcrux.
However, the trio had to struggle by the protective curses casted inside the Lestrange Vault. The Flagrante Curse would cause a heat and burn those whoever touches an object casted with the flagrante curse. The Gemino curse would multiply relentlessly once someone touched the object.
The trio had to find the horcrux without touching anything as it would burn them and if they’ve made a bad move and touched an object with the multiplying gemino curse, they would choke by death by the infinitely multiplying objects.
Discovery of Hufflepuff’s Cup & Escape from Gringotts Wizarding Bank by riding the Ukranian Ironbelly dragon
Harry Potter found the cup of Hufflepuff that he has saw from the private lessons with Albus Dumbledore of Hokey’s memories of Tom Marvolo Riddle and Hepzibah Smith.
Harry Potter caught Hufflepuff’s Cup but the gemion curse was activated and started to multiply immediately that could have choked the trio.
Griphook at the door demands the Sword of Gryffindor which the trio had to no choice but give it to him. Griphook betrayed the trio and sound the alarm where goblins and guards started running to them.
During the fierce battle, Hermione releases the Ukranian Ironbelly dragon and urges Harry and Ron to ride on it. The released Ukrainan Ironbelly released fire and smashed through the Gringotts Wizarding Bank flying away to freedom with Harry, Ron and Hermione on its back.
Voldemort’s Discovery of Harry Potter’s hunt of horcruxes
The news of the trio’s breakthrough into Gringotts Wizarding Bank and the brief mind connection of Voldemort and Harry Potter alerted Voldemort that Harry Potter discovered his secrets and was after horcruxes to destroy them. Harry Potter discovers that Voldemort has hidden a horcrux at Hogwarts by this brief connection.
Voldemort’s rage and massacre at Malfoy Manor
The goblins and the employees of Gringotts Wizarding Bank reported the break-in of Harry, Ron and Hermione to Voldemort in person at the Malfoy Manor.
Voldemort couldn’t believe that they could have broken into Gringotts but Voldemort fumed once he heard that a small golden cup was stolen that was Helga Hufflepuff’s cup and a horcrux of Voldemort.
Instantly, Voldemort murdered all those including Griphook holding the Sword of Gryffindor with the Elder Wand. The Sword of Gryffindor disappears from the corpse of Griphook.
Voldemort noticing Harry was hunting horcruxes heads to the cave island where he kept the Salazar Slytherin’s Locket. Voldemort panicking accidentally makes him go through all the horcruxes and Harry Potter realizes that there is a horcrux hidden at Hogwarts by these thoughts of Voldemort.
