Little Monster has thought up a highly imaginative nightmare involving a big black hole, a spider, the house going on fire, and, worst of all, mum not being there. Mother Monster agrees this would be very scary, but she counters his fears with a wonderful 'supposing' of her own - with pancakes for breakfast, balloons in the park, a long happy walk, and ice creams at the end. Little Monster happily accepts mum's version, and all is well. The creative integration of text within the wonderfully imaginative pictures makes the whole book a joy.