Final Quest

Gingerly, you push open the door to the room, and step in, Alasse and Torai close enough behind you for you to feel slightly suffocated by their presence.
Inside the room, there is a lovely waterfall. You stop, frowning. This can't be right. There can't be a waterfall inside.
Behind you, Torai shifts uneasily. "There's magic at work here," he says softly.
"And I don't think that it's good magic," Alasse adds. "I get the sense that there's a malicious force at work here."
"We already knew that," you reply.
What do you want to do?