Gerlinde Wiencirz

When Teddy's owner Paul plans a costume party, the magical teddy bear comes up with a costume that keeps the guests guessing who the mysterious stranger might be.

"Mog always seems to be in trouble because she is such a very forgetful cat. She forgets that she has a cat flap and she forgets when she has already eaten her supper. But one night, when an uninvited visitor turns up at the house, Mog's forgetfulness comes in very handy!" -- goodreads.com