The Ear in the Wall: Detective Kennedy's Case. Arthur B. Reeve
watching, afterwards, but I had cautioned him to be careful and keep under cover. One of the elevator boys told him that the robbers had made a hole in the safe. What did he mean? Did you see it?"
Rapidly Kennedy sketched what we had done, telling the story of how the dynamometer had at least partly exonerated Betty Blackwell.
When he reached the description of the hole in the safe, Carton was absolutely incredulous. As for myself, it presented a mystery which I found absolutely inexplicable. How it was possible in such a short time to make a hole in a safe by any known means, I could not understand. In fact, if I had not seen it myself, I should have been even more sceptical than Carton.
Kennedy, however, made no reply immediately to our expressions of doubt. He had found and set apart from the rest a couple of little glass bottles with ground glass stoppers. Then he took a thick piece of steel and laid it across a couple of blocks of wood, under which was a second steel plate.
Without a word of explanation, he took the glass stopper out of the larger bottle and poured some of the contents on the upper plate of steel. There it lay, a little mound of reddish powder. Then he took a little powder of another kind from the other bottle.
He lighted a match and ignited the second pile of powder.
"Stand back--close to the wall--shield your eyes," he called to us.
He had dropped the burning mass on the red powder and in two or three leaps he joined us at the far end of the room.
Almost instantly a dazzling, intense flame broke out. It seemed to sizzle and crackle. With bated breath we waited and, as best we could, shielding our eyes from the glare, watched.
It was almost incredible, but that glowing mass of powder seemed literally to be sinking, sinking right down into the cold steel. In tense silence we waited. On the ceiling we could see the reflection of the molten mass in the cup which it had burned for itself in the cold steel plate.
At last it fell through to the lower piece of steel, on which it burnt itself out--fell through as the burning roof of a frame building might have fallen into the building.
Neither Carton nor I spoke a word, but as we now cautiously advanced with Kennedy and peered over the steel plate we instinctively turned to Craig for an explanation. Carton seemed to regard him as if he were some uncanny mortal. For, there in the steel plate, was a hole. As I looked at the clean-cut edges, I saw that it was smaller but identical in nature with that which we had seen in the safe in Langhorne's office.
"Wonderful!" ejaculated Carton. "What is it?"
"Thermit," was all Kennedy said, as just a trace of a smile of satisfaction flitted over his face.
"Thermit?" echoed Carton, still as mystified as before.
"Yes, an invention of a chemist named Goldschmidt, of Essen, Germany. It is composed of iron oxide, such as conies off a blacksmith's anvil or the rolls of a rolling-mill, and powdered metallic aluminum. You could thrust a red-hot bar into it without setting it off, but when you light a little magnesium powder and drop it on thermit, a combustion is started that quickly reaches fifty-four hundred degrees Fahrenheit. It has the peculiar property of concentrating its heat to the immediate spot on which it is placed. It is one of the most powerful oxidizing agents known, and it doesn't even melt the rest of the steel surface. You see how it ate its way directly through this plate. Steel, hard or soft, tempered, annealed, chrome, or Harveyized--it all burns just as fast and just as easily. And it's comparatively inexpensive, also. This is an experiment Goldschmidt it fond of showing his students--burning holes in one--and two-inch steel plates. It is the same with a safe--only you need more of the stuff. Either black or red thermit will do the trick equally well, however."
Neither of us said anything. There was nothing to say except to feel and express amazement.
"Someone uncommonly clever or instructed by someone uncommonly clever, must have done that job at Langhorne's," added Craig. "Have you any idea who might pull off such a thing for Dorgan or Murtha?" he asked of Carton.
"There's a possible suspect," answered Carton slowly, "but since I've seen this wonderful exhibition of what thermit can do, I'm almost ashamed to mention his name. He's not in the class that would be likely to use such things."
"Oh," laughed Kennedy, "never think it. Don't you suppose the crooks read the scientific and technical papers? Believe me, they have known about thermit as long as I have. Safes are constructed now that are proof against even that, and other methods of attack. No indeed, your modern scientific cracksman keeps abreast of the times in his field better than you imagine. Our only protection is that fortunately science always keeps several laps ahead of him in the race--and besides, we have organized society to meet all such perils. It may be that the very cleverness of the fellow will be his own undoing. The unusual criminal is often that much the easier to run down. It narrows the number of suspects."
"Well," rejoined Carton, not as confident now as when he had first met us in the laboratory, "then there is a possible suspect--a fellow known in the underworld as 'Dopey' Jack--Jack Rubano. He's a clever fellow--no doubt. But I hardly think he's capable of that, although I should call him a rather advanced yeggman."
"What makes you suspect him?" asked Kennedy eagerly.
"Well," temporized Carton, "I haven't anything 'on' him in this connection, it's true. But we've been trying to find him and can't seem to locate him in connection with primary frauds in Murtha's own district. Dopey Jack is the leader of a gang of gunmen over there and is Murtha's first lieutenant whenever there is a tough political battle of the organization either at the primaries or on Election Day."
"Has a record, I suppose?" prompted Kennedy.
"Would have--if it wasn't for the influence of Murtha," rejoined Carton.
I had heard, in knocking about the city, of Dopey Jack Rubano. That was the picturesque title by which he was known to the police and his enemies as well as to his devoted followers. A few years before, he had begun his career fighting in "preliminaries" at the prize fight clubs on the lower East Side.
He had begun life with a better chance than most slum boys, for he had rugged health and an unusually sturdy body. His very strength had been his ruin. Working decently for wages, he had been told by other petty gang leaders that he was a "sucker," when he could get many times as much for boxing a few rounds at some "athletic" club. He tried out the game with many willing instructors and found that it was easy money.
Jack began to wear better clothes and study the methods of other young men who never worked but always seemed to have plenty of money. They were his pals and showed him how it was done. It wasn't long before he learned that he could often get more by hitting a man with a blackjack than by using his fists in the roped ring. Then, too, there were various ways of blackmail and extortion that were simple, safe, and lucrative. He might be arrested, but he early found that by making himself useful to some politicians, they could fix that minor difficulty in the life.
Thus because he was not only strong and brutal, but had a sort of ability and some education, Dopey Jack quickly rose to a position of minor leadership--had his own incipient "gang," his own "lobbygows." His following increased as he rose in gangland, and finally he came to be closely associated with Murtha himself on one hand and the "guns" and other criminals of the underworld who frequented the stuss games, where they gambled away the products of their crimes, on the other.
Everyone knew Dopey Jack. He had been charged with many crimes, but always through the aid of "the big fellows" he avoided the penitentiary and every fresh and futile attempt to end his career increased the numbers and reverence of his followers. His had been the history and he was the pattern now of practically every gang leader of consequence in the city. The fight club had been his testing ground. There he had learned the code, which can be summarized in two words, "Don't squeal." For gangland hates nothing so much as a "snitch." As a beginner he could be trusted to commit any crime assigned to him and go to prison, perhaps the chair, rather than betray a leader. As a leader he had those under him trained in the same code. That still was his code to those above him in the System.
"We want him for frauds