The Ear in the Wall: Detective Kennedy's Case. Arthur B. Reeve
With a jimmy eighteen inches long, even an anemic burglar can exert a pressure sufficient to lift two tons. Not one door-lock in ten thousand can stand this strain. It's like using a hammer to kill a fly. Really, the only use of locks is to keep out sneak thieves and to compel the modern, scientific educated burglar to make a noise. This fellow, however, was no sneak thief."
He continued to adjust the machine which he had brought. Langhorne watched minutely, but did not say anything.
"Bertillon used to call this his mechanical burglar detector," continued Kennedy. "As you see, this frame carries two dynamometers of unequal power. The stronger, which has a high maximum capacity of several tons, is designed for the measurement of vertical efforts. The other measures horizontal efforts. The test is made by inserting the end of a jimmy or other burglar's tool and endeavouring to produce impressions similar to those which have been found on doors or windows. The index of the dynamometer moves in such a way as to make a permanent record of the pressure exerted. The horizontal or traction dynamometer registers the other component of pressure."
He pressed down on the machine. "There was a pressure here of considerably over two tons," he remarked at length, "with a very high horizontal traction of over four hundred pounds. What I wanted to get at was whether this could have been done by a man, woman, or child, or perhaps by several persons. In this case, it was clearly no mere fake to cover up the opening of the door by a key. It was a genuine attempt. Nor could it have been done by a woman. No, that is the work of a man, a powerful man, too, accustomed to the use of the jimmy."
I fancied that a shade of satisfaction crossed the otherwise impassive face of Langhorne. Was it because the Bertillon dynamometer appeared at first sight to exonerate Betty Blackwell, at least so far, from any connection with the crime? It was difficult to say.
Important though it was, however, to clear up at the start just what sort of person was connected with the breaking of the door I could not but feel that Kennedy had some purpose in deferring and minimizing for the present what, to me at least, was the greater mystery, the entering of the safe itself.
He was still studying and comparing the marks on the door and the record made on the dynamometer, when the office telephone rang and Langhorne was summoned to answer it. Instead of taking the call in his own office, he chose to answer it at the switchboard, perhaps because that would allow him to keep an eye also on us.
Whatever his purpose, it likewise enabled us to keep an ear on him, and it was with surprise which both Kennedy and I had great difficulty in concealing, that we heard him reply, "Hello--yes-- oh, Mrs. Ogleby, good-morning. How are you? That's good. So you, too, read the papers. No, I haven't lost anything of importance, thank you. Nothing serious, you know. The papers like to get hold of such things and play them up. I have a couple of reporters here now. Heaven knows what they are doing, but I can foresee some more unpaid advertising for the firm in it. Thank you again for your interest. You haven't forgotten the studio dance I'm giving on the twelfth? No--that's fine. I hope you'll come, even if Martin has another engagement. Fine. Well-good-bye."
He hung up the receiver with a mingled air of gratification and exasperation, I fancied.
"Haven't you fellows finished yet?" he asked finally, coming over to us, a little brusquely.
"Just about," returned Kennedy, who had by this time begun slowly to dismember and pack up the dynamometer, determined to take advantage of every minute both to observe Langhorne and to fix in his mind the general lay-out of the office.
"Everybody seems to be interested in me this morning," he observed, for the moment forgetting the embargo he had imposed on his own words.
As for myself, I saw at once that others besides ourselves were keenly interested in this robbery.
"There," remarked Kennedy when at last he had finished packing up the dynamometer into two packages. "At least, Mr. Langhorne, you have the satisfaction of knowing that it was in all probability a man, a strong man, and one experienced in forcing doors who succeeded in entering your office during your brief absence last night"
Langhorne shrugged his shoulders non-committally, but it was evident that he was greatly relieved and he could not conceal his interest in what Kennedy was doing, even though he had succeeded in conveying the impression that it was a matter of indifference to him.
"I suppose you keep a great many of your valuable papers in safety deposit vaults," ventured Kennedy, finishing up the wrapping of the two packages, "as well as your personal papers perhaps at home."
He made the remark in a casual manner, but Langhorne was too keen to fall into the trap.
"Really," he said with an air of finality, "I must decline to be interviewed at present. Good-day, gentlemen."
"A slippery customer," was Craig's comment when we reached the street outside the office. "By the way, evidently Mrs. Ogleby is leaving no stone unturned in her effort to locate that Black Book and protect herself."
I said nothing. Langhorne's manner, self-confident to the point of bravado, had baffled me. I began to feel that even if he had lost the detectaphone record, his was the nature to carry out the bluff of still having it, in much the same manner that he would have played the market on a shoestring or made the most of an unfilled four-card flush in a game of poker.
Kennedy was far from being discouraged, however. Indeed, it seemed as if he really enjoyed matching his wit against the subtlety of a man like Langhorne, even more than against one the type of Dorgan and Murtha.
"I want to see Carton and I don't want to carry these bundles all over the city," he remarked, changing the subject for the moment, as he turned into a public pay station. "I'll ring him up and have him meet us at the laboratory, if I can."
A moment later he emerged, excited, perspiring from the closeness of the telephone booth.
"Carton has some news--a letter--that's all he would say," he exclaimed. "He'll meet us at the laboratory."
We hastily resumed our uptown journey.
"What do you think it is?" I asked. "About Betty Blackwell?"
Kennedy shook his head non-committally. "I don't know. But he has some of his county detectives watching Dorgan and Murtha in that Black Book case, I know. They are worried. It doesn't look as though they, at least, had the record--that is, if Langhorne has really lost it."
I wondered whether Langhorne might not, after all, as Kennedy had hinted, have concealed it elsewhere. The activity of Dorgan and Murtha might indicate that they knew more about the robbery than appeared yet on the surface. Had they failed in it? Had they been double-crossed by the man they had chosen for the work, assuming that they knew of and had planned the "job"?
The safe-breaking and the way Langhorne took it had served to complicate the case even further. While we had before been reasonably sure that Langhorne had the book, now we were sure of nothing.
Chapter IV
The Anonymous Letter
"What do you make of that?" inquired Carton half an hour later as he met us breathlessly at the laboratory.
He unfolded a letter over which he had evidently been puzzling considerably. It was written, or rather typewritten, on plain paper. The envelope was plain and bore no marks of identification, except possibly that it had been mailed uptown.
The letter ran:
DEAR SIR:
Although this is an anonymous letter, I beg that you will not consider it such, since it will be plain to you that there is good reason for my wishing to remain nameless.
I want to tell you of some things that have taken place recently at a little hotel in the West Fifties. No doubt you know of the place already--the Little Montmartre.
There are several young and wealthy men who frequent this resort. I do not dare tell you