This is the core of the aquatic creature, the waterproof pearl. If one carries it, water cant harm them. It's a good thing, because otherwise, they'd be swimming around in the water. The master of the island tells the group that the entrance is only open once a week, and they have to wait another three days to get there. He tells them to go back to their holy realm and check out the boat. The boat looks like a pirate ship, and the master tells the men to kill all the pirates. The pirates are not a threat, he says, because they are not cultivators. He says that he's dealt with the pirates on the island, and now he'll go to the island to look for the master.