Is Thorin's quest fulfilled

Thorin's quest for the Lonely Mountain and its treasure is ultimately fulfilled when he and his company reclaim Erebor from Smaug. However, the quest leads to significant personal cost, including Thorin's own death following the Battle of the Five Armies. While they achieve their goal, the quest highlights themes of greed, sacrifice, and the transient nature of victory. Ultimately, Thorin's legacy is marked by both the fulfillment of his aims and the tragic consequences that accompany them.