Of course, at that moment, Harry Potter didn't know there was a piece of Voldemort's soul in him, so he wouldn't have even tried to communicate with the Basilisk, but had he tried and succeeded at it, Harry Potter and the Chamber of Secrets would have ended very differently.
It makes sense that only a parseltounge could understand the basilisk or another snake, but people can hear snakes hiss. During the Dueling Club meeting, the other students can hear the conjured snake hiss and hear Harry hiss when he talks to it.
Why did the Basilisk Fang not destroy Harry's Horcrux?
Fawkes healed him w/his tears. Yall this question is easily answered by the fact that he didn't die and was healed by fawkes. bc harry has to actually die in order for it to be destroyed....
Why Didn't the Basilisk DESTROY the Horcrux in Harry? - Harry Potter Explained
Did everyone know Harry killed the Basilisk?
Ron, Mrs/Mr Weasley, McGonagall, Ginny, Dumbledore, and Harry were in the room when Harry explained how he had killed the Basilisk. Hermione probably knows since she figured out the Basilisk, so I guess she's gonna hear Harry killed it later. That gives us just a handful of people.
As a Parselmouth, Harry can easily communicate with Basilisk but I don't think he could controlled it as if he has the Basilisk under his will (or make it loyal to him) but more like he can influenced its behavior and take advantage to defeat it. Yes. Harry could have controlled the snake with Parseltongue.
Basilisk was Slytherin's monster, who can be controlled only by his descendent. Tom riddle was his direct descendent. While Harry got his ability to speak parseltounge because he had a part of Voldemort's soul in him.
Notably, Voldemort appeared to be entirely unaware of this split, as he later created a seventh Horcrux in his quest to have six, and continued to target Harry Potter despite him now holding part of Voldemort's own soul.
It was possible that the Basilisk was trained, enchanted or persuaded to obey only the Heir of Slytherin or anyone of the Slytherin bloodline and not all Parselmouths. The Basilisk's personality was not particularly complicated.
Harry, as heir of Gryffindor, possessed the love of this Muggle-born woman in his very blood and was the perfect champion to stand up against the heir of Slytherin.
How did Hermione avoid getting killed by the Basilisk?
Hermione was Petrified after seeing the Basilisks' eyes in a hand mirror. Petrification seemed quite powerful, as the legendary Albus Dumbledore concluded that the only way to reverse the effect was through the use of the Mandrake Restorative Draught.
The fact that basilisks and Horcruxes were brought into the magical world by the same Dark wizard indicates that Salazar Slytherin discovered Herpo's secret, bred a basilisk, and impregnated it with a piece of his soul to gain control over it.
Why didn't Harry use Parseltongue to control the basilisk?
Of course, at that moment, Harry Potter didn't know there was a piece of Voldemort's soul in him, so he wouldn't have even tried to communicate with the Basilisk, but had he tried and succeeded at it, Harry Potter and the Chamber of Secrets would have ended very differently.
Dumbledore. Keep in mind that although Harry was an extraordinary wizard he was inexperienced and only in his second year. Dumbledore is a much more experienced wizard beating Grindlewald and being a master of the Elder Wand. Dumbledore could easily destiny the basilisk.
dumbledore has learned to understand a human using parseltongue. But can not communicate with snakes. He isn't an inherent parselmouth. for some reason the basilisk can only be heard at all by parselmouths.
The prophecy is mentioned throughout the series, however, it never exclusively mentions that Harry is The Chosen One and suggests Neville was another option. However, one theory explains why, in reality, this wasn't possible.
Snape was born to Eileen Prince, a witch, and Tobias Snape, a Muggle, making him a half-blood (hence the name, "Half-Blood Prince"). This is rare for a Death Eater, as remarked in the last book, though Voldemort himself also had a Muggle father.
Dumbledore knew about Horcruxes. He knew how they were formed, what happened after that, etc. He probably got to know Harry was a Horcrux when he saw the Scar on Harry's forehead, but maybe he wasn't sure.
There is no exception that the heir of Slytherin would survive after looking at the eyes of a Basilisk. Voldemort might survive later when he had created those Horcruxes as it would not allow him to die completely even if he looked directly at a Basilisk.
Salazar Slytherin's basilisk was born in the chamber, as revealed by Aragog. Slytherin, in his spite of the his fellow founders' acceptance of muggle-borns into the school, left a basilisk deep in the chamber, in hopes that one day his true heir will unleash her to purge all they deem unworthy to study magic.
Nagini is NOT the Basilisk and does not live at Hogwarts. She doesn't have to get out, because she was never 'in'. It is only when Harry sees Snape's memory of his conversation with Dumbledore regarding the snake that he realizes that it is probably a Horcrux too.
After Lord Voldemort destroyed the fragment of his soul residing in Harry, Harry seemingly lost the ability to speak Parseltongue, about which he was glad and relieved. Over the next twenty-two years, he never attempted to speak the language, presuming that it had died with Voldemort.
The ability to speak Parseltongue is usually inborn; a wizard is born being able to speak Parseltongue, and those who are not born with the ability cannot normally learn the language (although, according to the author, Dumbledore may have learned to understand it, and in Harry Potter and the Deathly Hallows, Ron learnt ...
