Skirmish at Malfoy Manor

Dobby never meant to kill! Dobby meant only to maim or seriously injure."
—Dobby after he dropped a chandelier on Bellatrix[src]
Captured by a group of Snatchers led by Fenrir Greyback, Harry, Ron, Hermione, Dean Thomas, and the goblin Griphook were taken to Malfoy Manor. There, Bellatrix Lestrange saw that they were carrying the Sword of Gryffindor, and she stopped Lucius Malfoy from summoning Voldemort, afraid they had been in her Gringotts vault. Keeping Hermione upstairs for interrogation and torture, Bellatrix had the others imprisoned in the locked cellar, where they encountered Luna Lovegood and Ollivander, who were also being held there. Though the new arrivals were tied up, Luna found a nail with which she was able to cut their bonds.

Desperate at hearing Hermione's cries of pain from above, Harry frantically fidgeted with the fragment of the two-way mirror Sirius had given him years before and saw a sky-blue eye looking out of it at him. Harry pleaded for help from the owner of the eye, Aberforth Dumbledore, and shortly Dobby, sent by Aberforth, Apparated into the cellar. As he was able to Disapparate to and from the Manor, Harry instructed him to first take Luna Lovegood, Dean Thomas, and Mr. Ollivander from the cellar, then return. He did so, bringing the three to Shell Cottage, the home of Bill Weasley and his wife Fleur Delacour. From upstairs, where she was now questioning Griphook about whether or not the sword was the real one, Bellatrix heard the noise of Dobby Disapparating and sent Peter Pettigrew to investigate. Harry and Ron managed to overpower Pettigrew when he hesitated, reminded of his life debt to Harry, and his own magical silver hand strangled him to death.

Attempting to rescue Hermione and Griphook, Harry and Ron were forced to surrender when a disarmed Bellatrix threatened to cut Hermione's throat with a silver knife. Dobby announced his return by causing a chandelier to fall on Bellatrix. Harry seized the wands Draco Malfoy was holding and used a stunning spell on Greyback. Ron grabbed Hermione and they Disapparated to Shell Cottage. Meanwhile Harry similarly grabbed Griphook and Disapparated.
As Harry Disapparated, Bellatrix threw her knife at him. Harry, not knowing where he was heading, was relieved to find, in the midst of his Disapparation, that he could feel Dobby alongside. Arriving at Shell Cottage, Harry discovered that Dobby had been fatally wounded by Bellatrix's thrown knife. Dobby died moments later, his final words being Harry... Potter".[5]