Greedy power
"Hahaha, I wonder what he will think of this," Rain said when he finished the first part of his new tunnel three days later. "I shouldn't tell him, since others will probably hear of it and think that I am plotting something."
Rain's wives and kids were returning home that day, so Rain wondered how he could tell them that he created a secret path that led to the underwater castle… that wasn't his goal, but since it was on the way to the demi humans land Rain thought: why the hell not?
Rain's Powers increased quite a lot since he was able to create a tunnel like that which was five hundred kilometers long in three days… he had to drink potions every hour, though. He wasn't a monster that could do that without potions, but he could be. The next step would rely on Seadrei cooperation.