“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.

“DEAR SIR,

“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:

“DEAR SIR,

“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.

“I don’t see that that’s got anything to do with it.”

“No? But it has, you know, really it has.” He smiled again in his tired way, and continued reflectively. “So that brings us down to it again. What do you know about Jane Finn?

“Come now,” he continued, as Tuppence remained silent. “You must know something to have advertised as you did?” He leaned forward a little, his weary voice held a hint of persuasiveness. “Suppose you tell me....”

There was something very magnetic about Mr. Carter’s personality. Tuppence seemed to shake herself free of it with an effort, as she said:

“We couldn’t do that, could we, Tommy?”

But to her surprise, her companion did not back her up. His eyes were fixed on Mr. Carter, and his tone when he spoke held an unusual note of deference.

“I dare say the little we know won’t be any good to you, sir. But such as it is, you’re welcome to it.”

“Tommy!” cried out Tuppence in surprise.

Mr. Carter slewed round in his chair. His eyes asked a question.

Tommy nodded.

“Yes, sir, I recognized you at once. Saw you in France when I was with the Intelligence. As soon as you came into the room, I knew——”

Mr. Carter held up his hand.

“No names, please. I’m known as Mr. Carter here. It’s my cousin’s house, by the way. She’s willing to lend it to me sometimes when it’s a case of working on strictly unofficial lines. Well, now”—he looked from one to the other—“who’s going to tell me the story?”

“Fire ahead, Tuppence,” directed Tommy. “It’s your yarn.”

“Yes, little lady, out with it.”

And obediently Tuppence did out with it, telling the whole story from the forming of the Young Adventurers, Ltd., downwards.

Mr. Carter listened in silence with a resumption of his tired manner. Now and then he passed his hand across his lips as though to hide a smile. When she had finished he nodded gravely.

“Not much. But suggestive. Quite suggestive. If you’ll excuse my saying so, you’re a curious young couple. I don’t know—you might succeed where others have failed ... I believe in luck, you know—always have....”

He paused a moment, and then went on.

“Well, how about it? You’re out for adventure. How would you like to work for me? All quite unofficial, you know. Expenses paid, and a moderate screw?”