A long time before the quest for Erebor and Smaug, Thorin fell in love with a dwarf by the name of Celestia. Celestia was a dwarf princess she and Thorin meet, it was love at first sight. They wanted to get married but Thror did not give them his blessing. But they planned a secret wedding and only Gandalf knew about the new couple. For 20 years they have been together. And over those 20 years they had one daughter they named Thori.
"Thori come and try this bow and arrow." Thorin was proud of his only child, Thror, Thorin's grandfather wanted a son and would made fun of Thori. "Father why is Thror so mean to me? He said I couldn't even hold an a-x." Thori cried, Thorin hugged his upset daughter, 'can't hold a knife' was an insult because dwarfs were very strong. "Well I have an idea why don't you practice different weapons and you can show him." Thori liked that idea, she tried the bow and arrow she couldn't pull back the string. She tried the sword but she couldn't left it, next was the ax she nearly tore off her arms. Thori was about to give up when Thorin gave her a knife. "Try to throw this knife at the dummy." Thorin showed her how to throw it when Thror came into the field. "Thorin how is the little princesses didn't I tell you she was mistake. Thorin was about to speak but Thori interrupted, "I will show you!" Thori threw the knife at the dummy and landed right where the heart was. Thorin was shocked but it was Thror who was really puzzled.
As she grew older her mother came very ill. Thori was 25 when her mother died, Thorin was heartbroken. "Thorin!" It was Thror Thrain's father. "A miner found this." He was holding and stone that was smooth to the touch. "I think Thori should name it." Ever since Celestia died Thori never talked much and always stood close to Thorin. "Thori?" "The Arkenstone." "I like it." But the days closed in and turned sour. Thror's love of gold grew and grew. Thorin and Thori watched him as he slowly parted from his family. Thorin's close friend Balin helped out around the kingdom. He was close to Thori, like an uncle. He would tell her stories about the old days.
When two men about Thori's age came into the throne room with a woman in their arms. "We ask your help. Our mother is hurt and do not know what to do." The one with blonde hair caught Thori's eye. Thorin replied, "Balin help her." A smile ran on both their faces. As Balin took their mother to his medicine room Thorin asked them their names; the blonde's name was Fili and his little brother's name was Kili. Thorin saw that Thori liked the older dwarf, "Thori can you help Balin?" Thori did what her father said. When Thori left he turned to Fili, "That girl that you like is my only child and you will not do anything unless I hear about it." Fili was polite and said, "Understood." About one month later Fili's and Kili's mother was dead, Balin said that she may have died in the night.
Over that month Thori and Fili have been meeting every night telling stories. One night that they were together Fili put his arm around her for the first time. "Fili you're different, I like that. Sorry if my father was mean to you." Thorin was outside the room hearing everything they were saying. Right when Fili was about to make his move, "What are you doing Thori!" "Father." "Fili, get away from my daughter." Thorin's sword was at Fili's neck; the blade dug deeper into his neck it started to bleed. Fili tried to comfort her but she found herself crying in Fili's arms. Thorin grew less attached to his daughter, and Thori and Fili were so close that they both asked Thorin for his blessing in marriage. Thorin thought about it for weeks and finally said yes. The wedding was amazing and everyone was there, Thori's dress was a dark blue with fur and Thror's king belt. Fili was in his armor and everything was going great. They had their kiss but when the first dance was done Thorin and Fili had a private talk that left Thori unprotected. "You will take good care of her and make sure you will always love her, make nothing ever ha." A scream interrupted him, it was Thori. Thorin and Fili ran over to see what was going on, "Thori's gone!" Kili cried to is brother. "Thorin, Thori had her throwing knife belt with her." Thorin shot Fili a look, how does he know? Thorin had his best dwarfs and tracking dogs to found Thori but nothing. "Fili, Kili there is no hope of finding her." Thorin lost all hope.