Harry Tricks Lucius Malfoy into Freeing Dobby

PAGES: 336-338

After realizing Lucius Malfoy gave Ginny the diary, Harry tricks him into freeing Dobby by giving him a sock. When Lucius hands the sock to Dobby, the house-elf is set free. Enraged, Lucius tries to attack Harry, but Dobby protects him by magically throwing Lucius down the stairs.