Boom broom doesn't think his life could get any worse. Ever since his mother was swept away by a twister, his family has gone crazy. They refuse to leave the house and boom and his sister mertyle are looked after by halv...Boom broom doesn't think his life could get any worse. Ever since his mother was swept away by a twister, his family has gone crazy. They refuse to leave the house and boom and his sister mertyle are looked after by halvor, the viking descendant who rents the room over their garage.