How did Smaug die in the book The Hobbit?
The killer of Smaug is Bard the Bowman. He's alerted by a thrush who overheard of Smaug's weakness (a single bare spot in his bejeweled chest).Bard, a man in the town of Esgaroth, a town by the lake, killed the dragon. He was told by the thrush where Smaug's weak spot was, and thus Bard was able to shoot the dragon through the heart.