Ginny Weasley opened the Chamber under Tom Riddle's control; however, she only could open it because of Riddle's ability to speak Parseltongue. She was unable to speak Parseltongue afterwards, but Riddle probably told her what to say.
It was precipitated when Tom Riddle's Diary (one of Lord Voldemort's Horcruxes) possessed first year Ginny Weasley and forced her to open the Chamber of Secrets and write frightening messages on the walls. As the 1992–1993 school year came to an end Riddle forced her into the Chamber itself.
Ron and Hermione re-enter the chamber in Harry's seventh year; knowing that Basilisk venom will destroy a Horcrux, and having a Horcrux they need to destroy, Ron, who has twice now heard Harry pronounce the word "open" in Parseltongue, opens the Chamber by imitating the sound of the word.
How did McGonagall know it was Ginny in the Chamber?
Towards the end of the year McGonagall was forced to act as temporary Headmistress after the Ministry of Magic suspended Dumbledore. Finally, she discovered another note from the Heir of Slytherin which stated that he had taken Ginny Weasley into the Chamber.
In the 1942–1943 school year, while Tom Riddle was at Hogwarts School of Witchcraft and Wizardry in Slytherin House and explored the school, he found out he came from the direct line of Salazar Slytherin himself, and he opened the Chamber of Secrets and awakened the Basilisk inside.
Looking into the past, the true heir of Slytherin turns out to be none other than Tom Marvolo Riddle, better known as Lord Voldemort, the Dark Lord. Besides his ability to speak Parseltongue, which he passed on to Harry after he survived his attack, his bloodline was linked to the Hogwarts founder.
Paracelsus a notable alchemist and a "medical genius" is credited with the discovery of Parseltongue in the sixteenth century, despite the existence of speakers like Herpo the Foul or Salazar Slytherin in the classical and medieval ages.
In the film, she only hugs Harry, and just gives a hesitant handshake to Ron (Note: This was the result of Emma Watson being hesitant to hug both Daniel Radcliffe and Rupert Grint in public view, with her hugging Radcliffe during filming having to be frozen for a few seconds to get the desired effect due to Watson ...
The weasel destroys the basilisk by its odour, but dies itself in this struggle of nature against its own self. The basilisk and the weasel, by Marcus Gheeraerts the Elder.
J.K. Rowling once explained that Ginny Weasley is so powerful because she is the seventh child of a seventh child. This is part of folklore that has been around for a long time.
Tom Riddle was possessing Ginny via the diary. So, while possessed, Ginny would have opened the Chamber of Secrets and given the basilisk instructions in Parseltongue. The basilisk would have then traveled through the pipes seeking someone to kill.
In the film, Bellatrix casts a blue spell at Ginny Weasley instead of a Killing Curse, who deflects it using a Shield Charm. In the book she just avoids it.
Scorpius Hyperion Malfoy (b. c. 2006) was a British pure-blood wizard and the only child and son of Draco and Astoria Malfoy (née Greengrass). He attended Hogwarts School of Witchcraft and Wizardry from 2017 and onwards and was sorted into Slytherin House.
Godric Gryffindor is the only founder who is not mentioned to have any descendants, although for a time it was speculated that Harry Potter himself was a descendant of Gryffindor either through James Potter possibly because James hailed from Godric's hometown, or possibly through a line of Muggles descended from a ...
Harry Potter had a few love interests during his time at Hogwarts. Though he eventually settled down with Ginny Weasley, he also had a thing for Cho Chang in his earlier school years. Then, of course, there's his secret love for Draco Malfoy… Wait, what?
Luna married fellow naturalist Rolf Scamander, grandson of Fantastic Beasts and Where to Find Them author Newt Scamander, considerably later in life than Harry, Ron, Hermione, and Ginny, who all married and started families in their early-to-mid twenties.
Rowling revealed more information about Neville when she stated that he married Hannah Abbott, a Hufflepuff classmate, who became the landlady of the Leaky Cauldron. The couple live over the pub, a fact that Rowling thought people would find "particularly cool".
With no one to claim him as their own, Tom lived in a Muggle-run orphanage where he felt abandoned and unloved. He slowly realized he was different from others and became obsessed with his powers, believing he was unique and elite.
Before Lord Voldemort's first defeat in 1981, the diary was passed to Death Eater Lucius Malfoy, who kept the diary, in secret, before slipping it into Ginny Weasley's cauldron of school supplies at Flourish and Blotts in 1992.
