The Visit To Grandpa And Grandmas

Angela is off to stay with grandpa and grandma for a week. They are not
her true grandparents, being the parents of her stepfather but she has
grown up calling them grandpa and grandma none the less. She imagined
they will be the quiet and reserved old folks she had always imagined
them to be, but they have a bizarre rule that she must never leave her room under any circumstances after nine.