'I've lost my boo! I've lost my boo! Where has it gone? What will I do?'
Little Ghost has lost her boo, but she is determined to get it back, so she heads out to look for it. On her night-time hunt she meets a number of her friends, Owl, Pigeon, Rooster and Cow, and asks each of them if they've heard her boo. None of them have but they are all very kind and offer Little Ghost their own sound instead. But none are as good as her own scary boo so she keeps on looking.
In the end, it's the reader who finds it for her!