Powerful dragon whose destruction of Lake-town fuels the final conflict.
Smaug is the central enemy behind Thorin's campaign.
Smaug drove Thorin's dwarves from the Lonely Mountain and stole their treasure, motivating Thorin's quest.
Bilbo directly investigates and outwits Smaug.
Bilbo enters the Lonely Mountain, speaks with Smaug, discovers the dragon's unprotected patch, and escapes after provoking him.
Bard delivers the decisive attack that kills Smaug.
Bard receives the warning about Smaug's bare patch and shoots the dragon with his family's black arrow.
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