To shelter

The first thing you think to do is run to the shack. Maybe you can find some shelter from those things in there. Maybe Kairi and Riku had the same idea.

As you run, more and more of the creatures ooze out of the ground. You manage to get to the shack, it seems you were right. Well, half right anyway. Riku and Kairi aren't there.

If you know Riku, he probably found a way to fight those things and is keeping Kairi safe. You've gotta go find them.

You turn to go out the door and hear the creatures pounding on it, trying to break in. So you head up the stairs instead, and you see...