It's a dead end. There are no more quests left in the world. I’ve only been able to unlock three villages: the starting village, Aurus, and the Goblin village, plus a couple of guilds—that’s it. Of course, there are other paths around the world that are blocked by rocks, but the story doesn’t explain how to clear them. Is this the end of the free version of the game? If not, could you please explain in more detail how to remove the rocks and proceed further?