The kids where sleepwalking which leaded to murders and deaths.
Character trait at the beginning of the story
They start staying up or one person is awake while the others are asleep. That way they can ceach them before they can exape.
Character trait at the end of the story
Doing a horrible thing to get love for someone is never the thing to do. It is a good theme because Kaitlin was trying to get the teachers love by killing people, which is illegal.
If your character did not change, what could be a possible new ending?
I think the character trait would be rude. Kaitlin was a popular "pretty" girl who was a part of Dr. Beeche's secret club. She thought she was better than everyone, but she still would talk to everyone.
I think the trait is psycho. In the end, she was the one using hypnoses to give everyone nightmares and make them sleepwalk. She wanted Dr.Beeche all to herself. She thought that getting rid of everyone will give Dr.Beeche all to herself.
If she did not change, all the people would not die and Kaitlin would still be the mean girl.