Judith Mackrell, The Guardian Tue, 2008-07-15 01:00

The characters are marvels of ingenuity, so are the designs. A tiny stage framed by tree roots doubles both as Paddington Station (from which Edie was meant to be evacuated) and Kensington Gardens, where the fast-falling twilight is variously lit by the hellish glow of air raids, the flight of fireflies and the cosy lamps of underground fairy homes.