Post - BOTFA and Thorin lives - You and Thorin escape after a mass attack by bandits and hide away in a cave. What could possibly happen? One-shot for now

AU. Bilbo accepted his task as burglar and accompanied the dwarves to Erebor. Suddenly, a person from his past shows up with her company of rather unique beings that also must reach the Lonely Mountain in time to stop an evil foe from taking the arkenstone. Can peace be made between her and a bitter dwarf king-in-exile or will his fate remain locked in the future?

Thorin and his new wife begin correspondence letters as a way to cope after a fight. They never meant for it to become a sweet tradition bonded by love and understanding from what all transpired after retaking Erebor. T rating for language.