
during the siege, at night
Bilbo Gives the Arkenstone to Bard
Bilbo, hoping to prevent war, sneaks out of the Mountain and gives the Arkenstone to Bard and the Elvenking to use as a bargaining chip. This act of betrayal, though well-intentioned, enrages Thorin. It demonstrates Bilbo's growing wisdom and his prioritization of peace over treasure.