she tried to convince herself that parents are out there somewhere and that the kids were probably playing a game , in which they had a chief , and an assembly room , and everything it was probably just their school , like model united nations where they all pretend to be ambassadors from different countries under the direction of their history teacher but the uneasy feeling did not leave her completely : the way they got into this place was very strange , and it was still very unclear who these people were .