"Coming!" calls a voice from deep inside the flat, and after a moment there are footsteps, followed by the door flinging open.

Nymphadora stands across the threashold, Anthony on her hip. The baby's wearing a nappy, a tee-shirt, and one stripey sock. 'Dora's holding the other sock and his trousers in her hand.

Looks like another day at the circus.

But the witch's face lights up. "Elizabeth! Hi, it's brilliant to see you, come in!"