What will happen to your children once I've killed you? When Mummy's gone the same way as Freddie?
Who: Bellatrix Lestrange
Source: Harry Potter and the Deathly Hallows by J. K. Rowling
Note: Bellatrix is taunting Mrs. Weasley, whose son Fred has just been killed. Mrs. Weasley shouts back that Bellatrix will "never touch [her] children again" and kills her with a spell.