This adaptation of Judith Kerr's hugely popular children's story solves the problem of how you reinvent a book's talking animal for the stage. Here he is mute. This tiger, who eats and drinks his host Sophie and her mum out of house and home, communicates his needs through mime. It's a slightly insipid solution. But this big cat is still scary which brings out the symbolism of Kerr's story, which, whether the author intended it or not, portrays how the outside world can be as sinister as it is exciting.