Foxton Polegate’s freckled face, surmounted by a shock of reddish hair, appeared at the entrance to their recess.

“Been hunting about for you,” he explained as he sat down. “Couldn’t make out where you’d got to.”

He turned to Joan.

“Dropped across this evening on important business. Fact is, I’ve lost my invitation-card and the book of words. Didn’t read it carefully when it came. So thought I’d drop over and hear what’s what. Programme, I mean, and all that sort of thing, so there’ll be no hitch.”

Una leaned over and selected a fresh cigarette from the box.

“You’re hopeless, Foxy,” she pronounced. “One of these memory courses is what you need badly. Why not treat the thing as a practical joke instead of in earnest? Then you’d have no difficulty. Jokes are the only things you ever seem to take seriously.”

“Epigrams went completely out before you were born, Una,” Foxy retorted. “Don’t drag ’em from their graves at this hour of the century. And don’t interrupt Joan in her instructions to the guest of the evening. Don’t you see she’s saying ’em over nervously to herself for fear she forgets ’em?”

“There’s a bit too much of the harassed nursemaid about you, Foxy, with all your ‘don’ts,’ ” Joan broke in. “Now take your stylus and tablets and jot this down carefully, for I won’t repeat it under a shilling a page. Here’s the programme. Ten p.m.: Arrival of distinguished guests. (They’re all distinguished, except you, Foxy.) Brilliant and animated conversation by those who can manage it; the rest can listen intelligently. (You may try listening, Foxy, if it isn’t too much of a strain.) The cloak-room, picture-gallery, museum, and poultry-yard will be thrown open for inspection by the public absolutely free of charge. It won’t cost you a cent. Bridge-tables will be provided for the curiosities who don’t dance. Dancing will begin straightway and will be continued up to 11.45, when the judges will take their seats. As soon as they are comfortable, the march-past will start. All guests must present themselves at this without fail, Foxy. At five minutes to twelve the identity of the prize-winners will be disclosed. When midnight strikes, all guests will remove their masks, even at the cost of shocking the company in some cases. Dancing will then be resumed and will continue into the dewy dawn. And that’s how it will take place according to plan.”

“There’s just one point,” said Foxy, hesitatingly. “Are the prizes portable things, or shall I have to hire a van to take mine away with me?”

“I shouldn’t worry a bit about that, Foxy,” said Una, comfortingly. “We’ve decided to keep the prizes in the family, you see. Joan gets one, because it will be her birthday. I get the other for the best female costume. Cecil, Maurice, and Michael are going to toss odd-man for the two men’s prizes. So you can come as a Teddy Bear without pockets if you like. It won’t be of any consequence. You’ll have nothing to carry away.”