What they fail to see is that she is already dead, and she's luring them in to kill them. Bathilda speaks to Harry alone in parseltongue, and although the audience can see the snake appearing from a disappearing body, it does not explain how Nagini could've held Bathilda's corpse long enough, let alone fit inside it.
Harry and Bathilda Bagshot's body inhabited by Nagini speak Parseltongue. When Harry Potter and Hermione Granger went to Godric's Hollow in 1997, Nagini (inside the corpse of Bathilda Bagshot) tells Harry to "Come!" from the next room in Parseltongue.
The ability to actually speak Parseltongue — not just imitate it as Ron Weasley did — was considered an attribute of a Dark wizard, which was partly due to the fact that both Salazar Slytherin and Lord Voldemort possessed this ability. Another notable Dark wizard who was also a Parselmouth was Herpo the Foul.
Her body disappears and gives way to Nagini, while Hermione finds what seems to be the snake's changed skin. Nagini's impersonation of Bathilda is, nevertheless, an intended trap by Voldemort for Harry, which might have put his most important Horcrux in jeopardy.
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.
It also needed to be recovered "under conditions of need and valour". To fulfil these conditions, Snape deposited the real sword in a frozen lake in the Forest of Dean and used his corporeal Doe Patronus to guide Harry to the sword.
After Voldemort is destroyed, Harry presumingly loses his ability to speak Parseltongue. He is relieved and never attempts to speak it again until the events of The Cursed Child.
Because some snakes can sense heat and movement in a way humans cannot, Nagini was able to detect Harry and Hermione even when they were under the Cloak of Invisibility.
Hermione comes out with two cups of tea and a copy of Rita Skeeter's book—she'd found it in Bathilda's house with a note from Skeeter, thanking her and claiming that she said everything the book contains, even if she doesn't remember talking.
However, given the context of concealment and fear of danger among the characters in the excerpts, it might be inferred that Bathilda didn't speak in front of Hermione possibly to protect a secret or because she feared some form of retaliation, though these are speculative answers.
Why didn t Harry speak Parseltongue to 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.
Her real parents were Daneel and Dean Novak, Pureblooded wizards. Turns out Daneel was Tom Riddles younger sister, Daneel Riddle. Of course, the Riddles were related to Salzar Slytherin himself, and this made Hermione the living heir of Slytherin.
Since goblin metal takes in only that which makes it stronger and rejects anything that would weaken it, Gryffindor's blade couldn't have been turned into a Horcrux. Likely, the soul fragment would have been rejected, which could have seriously impacted Voldemort's plans in Harry Potter.
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.
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?
J.K. Rowling says Draco doesn't have a patronus because he never learned the spell but I think it's because he doesn't have any powerful happy memories to use.
Ultimately, Hermione discovered the means by which Rita spied on others and forced her to "keep her quill to herself for a full year" by catching her in her beetle form while she was perched on the Hospital Wing window and trapping her in a jar imbued with an Unbreakable Charm so she couldn't transform.
Did Hermione Granger keep a person alive in a jar?
Near the end of term, she stops fraudulent tabloid reporter and unregistered Animagus, Rita Skeeter, who had published defamatory material about Hermione, Harry, and Hagrid during the Triwizard Tournament, by holding her Animagus form (a beetle) captive in a jar.
