具体描述
Once there was a cat called Mog and she lived with a family called Thomas. Mog was nice but not very clever, and she forgot a lot of things...'Bother that cat!' Mog always seems to be in trouble. She forgets that she has a cat flap and she forgets that she has already eaten her supper. But, one night, Mog's forgetfulness comes in very handy...
