The 17th act of the Anglo-Saxon poem Beowulf includes Beowulf's fight with a dragon, the third monster he encounters in the epic. On his return from Heorot, where he killed Grendel and Grendel's mother, Beowulf becomes king of the Geats and rules wisely for fifty years until a slave awakens and angers a dragon by stealing a jeweled cup from its lair. When the angry dragon mercilessly burns the Geats' homes and lands, Beowulf decides to fight and kill the monster personally. He and his thanes climb to the dragon's lair where, upon seeing the beast, the thanes flee in terror, leaving only Wiglaf to battle at Beowulf's side. When the dragon wounds Beowulf fatally, Wiglaf slays it.
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