Seven Seas Treasure

"I'd never have thought that this little accessory would be more than just that. I'd have never suspected that this could be tied to greater things... And obviously there's far more to it than I ever could have thought." Amu, still resting the Lock in her dainty palm, gazed at it in wonder. "After all, a Key is nothing without something for it to open." 1700's piracy AU. Amuto.