"Billy's going to the hospital and he's nervous about staying the night. 'Don't worry,' say the mini monsters.'We'll be there with you!' But while Billy's makin

Billy's going to stay in hospital OVERNIGHT. What will happen when the Mini Monsters decide to come too? Billy's feeling nervous about his first overnight stay

Billy hates swimming. It's cold and wet and horrible. And just when Billy thinks things can't get any worse, his pet Mini Monsters turn up at his swimming lesso

Billy's Mini Monsters really want to go to school with him. But Billy really doesn't want them to. He's got enough trouble with the school bully, Basil Brown. B