When Saskia goes to stay with her aunt and uncle, she finds them worried about her little cousin Simon, who is having terrible dreams. Something strange is definitely going on, and it seems to be centered on Simon’s car-shaped bed, which once belonged to another little boy. Only the old woman Birdie Murray knows what’s causing the nightmares—an ancient evil that she has fought over many lifetimes. This time the power is very strong, and she enlists Saskia’s help in a dangerous game where the prize is a little boy’s life.