A little note on 50 Fathoms history
The setting for 50 Fathoms is the water world of Caribdus. It was once a very different world, with several small continents and prosperous cities, towns and villages.
In the city-state Ograpop three witches was sentenced to death by King Amemnus. They were sentenced to drowning, and as they died, with they dying breath they cursed the king and Caribdus to drown the same way as they do. The water rise, and the citizens of Ograpop killed their own king, believing it will stop the incoming tide. What they really do, is that hey fulfilled the witches curse. As Amemnus died in the water, the witches body became filled with unlife, and they came back as something more powerful: the Sea Hags.
Now, thirteen years later, the world is filled with the minions of the Sea Hags. From their lair in Devilís Cross comes a horde of bloodthirsty pirates, monsters from the depths and ghost ships manned by their damned crews. Razor wings could descend from the sky to kill unwary sailors. The world is dangerous.
The natives of Caribdus (Crab-like scurillians, massive grael, lonely doreen, mysterious kraken, curel kehana, and the nigh-human masaquani) are trying their best to adapt to the new world. Meanwhile visitors, called humans arrive to Caribdus from an unknown other world, Earth. Itís rumored to be they destiny to destroy the Sea Hags, and lift their curse. however, currently it seems that most of the visitors are only interested in plunder and piracy.