Talk to Radimus Erkle in the Legends' Guild. He will say something about a lot of gigantic monsters in Witchaven, prepare to fight! Go to Witchaven, you must fight some big sea slugs of level 20-50. After they are killed, a cutscene plays: the seaslugs are going back to the water. You must go to Murphy with the Fishbowl helmet and a Diving apparatus (Brine Sabre is recommeded) and ask him to dive at the coast of Witchaven. You must dive now, Look out for the agresive sea slugs, go in the cave north of the sea. You must do the same thing next but now the sea slug guard's aren't aggressive (only some aggressive by the key) but when they see you you will be teleported back to the entrance and you will receive a little damage. Go first to the key, South west, after you get it go to the north d