Good Hobbit Morning chapter 14 "Fire & Water"

"Smaug first destroyed the bridge to land, leaving the people of Lake-town stranded on the island. The archers, led by Bard, attempted to slay the dragon, but were unable to do so. Suddenly, a thrush came to Bard, whose companions were abandoning him. The thrush told Bard of the bare patch on Smaug's breast, which was illuminated by the light of the rising moon. Bard then took his Black Arrow, which he had saved from his ancestors, and shot down the dragon. Smaug let out one final shriek and fell directly on Lake-town."