"We made him invisible by mistake," whispered Mr. Tovey. "But sh—sh, he doesn't know it yet."

"Nothing matters," said Miss Ford. "We are all going to America." And she continued her song, which was an extempore one about the sea.

"But that's no reason why you should burn the house down," said Sarah Brown.

"That's what I thought," agreed Mr. Frere. "But water won't put out that flame."

The singers fell silent. Only the voice of the invisible Mayor could be heard, singing, "If those lips could only speak," in a loud tremulous voice, to the accompaniment of his own unseen stamping feet.

"You've been putting magic into that flame," said Sarah Brown distractedly. "I told you it was dangerous. Nothing will put magic out, except more magic. What will the witch say?"

"It doesn't matter what anybody says," said Miss Ford. "We are all going to America. No place and no person matters when I am not there. There are no places and no people existing where I am not. I have suspected it before, and now I am sure that everything is all a pretence, except me. Look how easy it was to dismiss that gross grocer from sight. He was just a bit of background. I have painted him out."

The drapery department on the ceiling was ablaze now, and flakes of ashy petticoat, and the metal frames of buttons, showered to the floor.

"I will go and get help," said Sarah Brown, and hurried out of doors, followed feverishly by David, who was not a very brave dog in moments of crisis, and yet liked to appear busy and helpful. It was to the ferryman's telephone that they returned. Sarah Brown knew that the fire was a magic fire, and that an appeal to the L.C.C. Fire Brigade would only bring defeat and unnecessary bewilderment upon a deserving organisation.

Sarah Brown rang up Richard's office, and Richard, who had a heroic and almost cinematic gift for being on hand at the right moments, answered her himself.