The old lady was agreeably excited to see two gentlemen standing on her doorstep, and noticed nothing at all odd about their clothes. Visions of unexpected legacies, of newspaper reporters asking about her looth birthday (she was really only 95, but had managed to keep it dark) flashed through her mind. She picked up the slate she kept hanging by the door and went gaily forth to greet her visitors.

“You’ll have to write it down,” she simpered, holding out the slate. “I’ve been deaf this last twenty years.”

Crysteel and Danstor looked at each other in dismay. This was a completely unexpected snag, for the only written characters they had ever seen were television programme announcements, and they had never fully deciphered those. But Danstor, who had an almost photographic memory, rose to the occasion. Holding the chalk very awkwardly, he wrote a sentence which, he had reason to believe, was in common use during such breakdowns in communication.

As her mysterious visitors walked sadly away, old Mrs Tomkins stared in hauled bewilderment at the marks on her slate. It was some time before she deciphered the characters—Danstor had made several mistakes—and even then she was little the wiser.

TRANSMISSIONS WILL BE RESUMED AS SOON AS POSSIBLE.

It was the best that Danstor could do; but the old lady never did get to the bottom of it.

They were little luckier at the next house they tried. The door was answered by a young lady whose vocabulary consisted largely of giggles, and who eventually broke down completely and slammed the door in their faces. As they listened to the muffled, hysterical laughter, Crysteel and Danstor began to suspect, with sinking hearts, that their disguise as normal human beings was not as effective as they had intended.

At Number 3, on the other hand, Mrs Smith was only too willing to talk—at 120 words to the minute in an accent as impenetrable as Sam Higginsbotham’s. Danstor made his apologies as soon as he could get a word in edgeways, and moved on.