One of Mr Sweet's colleagues at the University disappears, and the trail leads Tarot and his friends to a dolls' hospital run by the eccentric 'Mama Doc'.

Professor Darien has fallen into Mama Doc's trap, and has been over-powered by her sidekick Bobby, the fake policeman. But why has Mama Doc enticed the professor to visit her dolls' hospital?

Mr Sweet and Mikki have both visited Mama Doc's dolls' hospital - but Mikki has not returned