A Devil Fruit User's Guide to Pirating
Sea Stone Mountain
Within the highest point of the sea stone mountain is a prison cell dedicated to devil fruit users. An Ice Dragon used this cell as his home and sat in front of two giant doors, and it was the governments natural solution to keeping prisoners inside with a guaranteed death. One the day our adventurer's story began, the ice dragon had started to decay, sending the frozen prison to an unearthly level of cold.