Ghostly Lady

The Chostly Lady also known as Christiana is a former adventurer. In her adventures she got so powerful that she was able to extend her live. After some time she got bored of the endless times and decided to play with the mortals.

Riddles

At first she only chose to appear and ask riddles to travelers, if they were able to answer the riddle they would be rewarded. Later she then decided to make the reward the game. With her increasing age less and less were able to answer her riddle on the first try. This is when she decided to ask the riddles to groups, allowing them more tries. Such an example is the Crew of the Devilsfall.