Getting her sight away from the moony sky, she was thinking where should she stay for the night.

        "Breezy night, and I don't want to sleep in the field again. I hope I can have somewhere to go," she said to herself when she examined the keys. There were thirteen keys, she counted, and everyone had the same symbol as the one on the pocket-watch on one side, and on the other side there were some numbers. 857, 314, 948, 103, 726, 316, she read some of them, these are unrecognizable, what are they used for? Then she looked at the key of 316 again, I like this one, but why? She held the keys, 316 pointing upside and others in her fist,  above her head under the moon, and she discovered there was a stream of light coming out from the key, pointing to a point far away.  That's interesting, when she turned the key to see if the light was still pointing to the point. It did. She then decided to go to where the light pointed, though she did not know what there will be.

        After a minute of two, in front of her was a river, and beside her was a marble arch bridge. I have never seen this kind of bridge before, is it safe enough for me to cross? She then decided to cross the bridge, as she saw the light pointing over the river; and after half and hour, she saw a tall building.

        It is a clock tower, and as she looked at the clock, she found the most peculiar thing: The clock is the same as the the pocket-watch. Only size differs. Then she found herself in front of the door of the tower, when she found the thing that was even more peculiar: there were three numbers carved on the door.

        316.

         How strange.