At the end of that book, Harry tricks Lucius Malfoy into handing Dobby a sock, thereby freeing him from his servitude. Dobby keeps the sock until his death, which comes as he rescues Harry and his friends from the dungeon at Malfoy Manor. Dobby dies in Harry's arms on the beach after they disapparate there.
In Dobby's case, Harry Potter cleverly tricked Lucius Malfoy into giving Dobby a sock, thereby unknowingly freeing him. This moment is a turning point in Dobby's life, as he gains his freedom and starts a new chapter, working in the Hogwarts kitchens and aiding Harry and his friends.
The socks are a tribute to Dobby, who is freed from indentured servitude after his evil owner, Lucius Malfoy, is tricked into gifting him a sock. Dobby wears the sock until his death.
A quick recap for non-Potterheads: House elves can only be freed when their master gives them an article of clothing, and early in the series Potter helps Dobby by tricking his evil master into handing him a book with a sock between its pages (cue the iconic scene: "Master has given Dobby a sock ... Dobby is free").
Dobby is a Free Elf | Harry Potter and the Chamber of Secrets
Why does Dobby mess with Harry?
Yet these actions were part of Dobby's plans to save Harry from Lucius' plans to reopen the Chamber of Secrets at Hogwarts, and while Harry was upset, he also understood Dobby's real intentions.
Why did Dobby cry when Harry asked him to sit down?
The creature stands and introduces himself as Dobby the house-elf, and Harry invites him to sit back down on the bed. Dobby bursts into noisy tears at being treated like an equal by a wizard, and this noise causes the dinner party voices downstairs to falter slightly.
When Dobby's last words before dying in Harry's arms are "Such a beautiful place, to be with friends. Dobby is happy to be with his friend, Harry Potter."
Honestly, Hermione knew Dobby was a lost case... nothing could have revived Dobby after the attack or she would have definitely helped Harry with Dobby considering she was the girl who started S.P.E.W(Society for the Elfish welfare) and fought for elf rights. There was nothing to be done at that point.
The house-elf is so intensely loyal to their master that they will not allow themselves to be set free unless the master presents them with clothes. To symbolise this, they usually wear makeshift clothes made with found objects such as pillowcases and rags.
Throughout the series, Dobby shows a level of devotion to Harry that is unmatched, and that's what kills him. Though they get off to a rough start, Harry grows to appreciate Dobby and his often misguided protections, making this death all the more upsetting.
Freshwater West Beach in Pembrokeshire, Wales is the location where the production team of Harry Potter and the Deathly Hallows-Part One shot Dobby's death scene. In the movie, Dobby dies in Harry's arms from a fatal knife wound, and his last words were “Such a beautiful place, to be with friends.
In his concession that Dobby can call him a barmy old codger, Dumbledore ought to know that of course it will never happen, as he is inherently not one in his having given Dobby that assurance of freedom.
Dobby was average in terms of magical prowess when comparing him to other house-elves. Others of his kind like Kreacher could also Apparate without any trouble.
At the end of that book, Harry tricks Lucius Malfoy into handing Dobby a sock, thereby freeing him from his servitude. Dobby keeps the sock until his death, which comes as he rescues Harry and his friends from the dungeon at Malfoy Manor. Dobby dies in Harry's arms on the beach after they disapparate there.
'Dobby Has Heard Of Your Greatness, Sir, But Never Has He Been Asked To Sit Down By A Wizard! Like An Equal! ' Source Book/Movie: Harry Potter and the Chamber of Secrets.
Dobby is as selfless as they come, and often puts himself at risk in order to protect Harry and his friends. When he knows it's the right thing to do, Dobby will always stand up for what he believes in, even if it's dangerous. He considers Harry Potter his best friend, and exhibits unwavering loyalty to him.
Dobby overheard something from Master Lucius and went to Harry Potter-Black to warn him, but Young Master Draco told Dobby to tell Mistress Cissa instead!" Dobby rushed out in one breath.
On 31 July 1992, Petunia made this pudding for Mr and Mrs Mason. Unknown to them, Dobby the house-elf came and levitated it before cancelling the charm, causing the pudding to fall to the floor and explode all over the place, to get Harry in trouble and force him to stay at 4 Privet Drive.
Dobby came to help Harry on his own accord against his masters wishes which is why he had to punish himself. In GOF he came because he over heard Moody talking about Harry needing Gillyweed for the 2nd task, so he went and stole it for him. In DH Aberforth sent him to help Harry when they were trapped at Malfoy Manner.
