"Not in the city. Every one's in such a hurry. Probably no one will even notice you at all."

"That's the second time you've made that sort of remark. Never mind, I forgive you. Anyway, it will be rather a lark. What are you doing this afternoon?"

"Well," said Tuppence meditatively. "I HAD thought of hats! Or perhaps silk stockings! Or perhaps--"

"Hold hard," admonished Tommy. "There's a limit to fifty pounds! But let's do dinner and a show to-night at all events."

"Rather."

The day passed pleasantly. The evening even more so. Two of the five-pound notes were now irretrievably dead.

They met by arrangement the following morning and proceeded citywards. Tommy remained on the opposite side of the road while Tuppence plunged into the building.

Tommy strolled slowly down to the end of the street, then back again. Just as he came abreast of the building, Tuppence darted across the road.

"Tommy!"

"Yes. What's up?"

"The place is shut. I can't make anyone hear."

"That's odd."

"Isn't it? Come up with me, and let's try again."

Tommy followed her. As they passed the third floor landing a young clerk came out of an office. He hesitated a moment, then addressed himself to Tuppence.

"Were you wanting the Esthonia Glassware?"

"Yes, please."

"It's closed down. Since yesterday afternoon. Company being wound up, they say. Not that I've ever heard of it myself. But anyway the office is to let."

"Th-thank you," faltered Tuppence. "I suppose you don't know Mr. Whittington's address?"

"Afraid I don't. They left rather suddenly."

"Thank you very much," said Tommy. "Come on, Tuppence."

They descended to the street again where they gazed at one another blankly.

"That's torn it," said Tommy at length.

"And I never suspected it," wailed Tuppence.

"Cheer up, old thing, it can't be helped."

"Can't it, though!" Tuppence's little chin shot out defiantly. "Do you think this is the end? If so, you're wrong. It's just the beginning!"

"The beginning of what?"

"Of our adventure! Tommy, don't you see, if they are scared enough to run away like this, it shows that there must be a lot in this Jane Finn business! Well, we'll get to the bottom of it. We'll run them down! We'll be sleuths in earnest!"

"Yes, but there's no one left to sleuth."

"No, that's why we'll have to start all over again. Lend me that bit of pencil. Thanks. Wait a minute-don't interrupt. There!" Tuppence handed back the pencil, and surveyed the piece of paper on which she had written with a satisfied eye:

"What's that?"

"Advertisement."

"You're not going to put that thing in after all?"

"No, it's a different one." She handed him the slip of paper.

Tommy read the words on it aloud:

"WANTED, any information respecting Jane Finn. Apply Y.A."

THE next day passed slowly. It was necessary to curtail expenditure. Carefully husbanded, forty pounds will last a long time. Luckily the weather was fine, and "walking is cheap," dictated Tuppence. An outlying picture house provided them with recreation for the evening.

The day of disillusionment had been a Wednesday. On Thursday the advertisement had duly appeared. On Friday letters might be expected to arrive at Tommy's rooms.

He had been bound by an honourable promise not to open any such letters if they did arrive, but to repair to the National Gallery, where his colleague would meet him at ten o'clock.

Tuppence was first at the rendezvous. She ensconced herself on a red velvet seat, and gazed at the Turners with unseeing eyes until she saw the familiar figure enter the room.

"Well?"

"Well," returned Mr. Beresford provokingly. "Which is your favourite picture?"

"Don't be a wretch. Aren't there ANY answers?"

Tommy shook his head with a deep and somewhat overacted melancholy.

"I didn't want to disappoint you, old thing, by telling you right off. It's too bad. Good money wasted." He sighed. "Still, there it is. The advertisement has appeared, and-there are only two answers!"

"Tommy, you devil!" almost screamed Tuppence. "Give them to me. How could you be so mean!"

"Your language, Tuppence, your language! They're very particular at the National Gallery. Government show, you know. And do remember, as I have pointed out to you before, that as a clergyman's daughter--"

"I ought to be on the stage!" finished Tuppence with a snap.

"That is not what I intended to say. But if you are sure that you have enjoyed to the full the reaction of joy after despair with which I have kindly provided you free of charge, let us get down to our mail, as the saying goes."

Tuppence snatched the two precious envelopes from him unceremoniously, and scrutinized them carefully.

"Thick paper, this one. It looks rich. We'll keep it to the last and open the other first."

"Right you are. One, two, three, go!"

Tuppence's little thumb ripped open the envelope, and she extracted the contents.

"Referring to your advertisement in this morning's paper, I may be able to be of some use to you. Perhaps you could call and see me at the above address at eleven o'clock to-morrow morning. "Yours truly, "A. CARTER.

"27 Carshalton Gardens," said Tuppence, referring to the address. "That's Gloucester Road way. Plenty of time to get there if we tube."

"The following," said Tommy, "is the plan of campaign. It is my turn to assume the offensive. Ushered into the presence of Mr. Carter, he and I wish each other good morning as is customary. He then says: 'Please take a seat, Mr.-er?' To which I reply promptly and significantly: 'Edward Whittington!' whereupon Mr. Carter turns purple in the face and gasps out: 'How much?' Pocketing the usual fee of fifty pounds, I rejoin you in the road outside, and we proceed to the next address and repeat the performance."

"Don't be absurd, Tommy. Now for the other letter. Oh, this is from the Ritz!"

"A hundred pounds instead of fifty!"

"I'll read it:

"Re your advertisement, I should be glad if you would call round somewhere about lunch-time. "Yours truly, "JULIUS P. HERSHEIMMER."

"Ha!" said Tommy. "Do I smell a Boche? Or only an American millionaire of unfortunate ancestry? At all events we'll call at lunch-time. It's a good time-frequently leads to free food for two."

Tuppence nodded assent.

"Now for Carter. We'll have to hurry."

Carshalton Terrace proved to be an unimpeachable row of what Tuppence called "ladylike looking houses." They rang the bell at No. 27, and a neat maid answered the door. She looked so respectable that Tuppence's heart sank. Upon Tommy's request for Mr. Carter, she showed them into a small study on the ground floor where she left them. Hardly a minute elapsed, however, before the door opened, and a tall man with a lean hawklike face and a tired manner entered the room.

"Mr. Y. A.?" he said, and smiled. His smile was distinctly attractive. "Do sit down, both of you."

They obeyed. He himself took a chair opposite to Tuppence and smiled at her encouragingly. There was something in the quality of his smile that made the girl's usual readiness desert her.

As he did not seem inclined to open the conversation, Tuppence was forced to begin.

"We wanted to know-that is, would you be so kind as to tell us anything you know about Jane Finn?"

"Jane Finn? Ah!" Mr. Carter appeared to reflect. "Well, the question is, what do you know about her?"

Tuppence drew herself up.