The tall young miner exchanged greetings with the derailer-switch operator. If the wire, which was shackled to a chain bridle on the front car, broke, Jim Higgins was supposed to throw the switch to make the train jump the tracks before the hundred-ton runaway plummeted back down into the works.

“The cops are watching you,” Higgins warned.

“I’m no striker.”

“All we’re asking,” Higgins answered mildly, “is to live like human beings, feed our families, and send our kids to school.”

“They’ll fire you.”

“They can’t fire us all. The coal business is booming and labor is scarce.”

Higgins was a brave man. He had to be to ignore the fact that the mineowners would stop at nothing to keep the union out of West Virginia. Men fired for talking up the union — much less calling a strike — saw their wives and children kicked out of the shanties they rented from the Gleason Consolidated Coal & Coke Company. And when Gleason smoked out labor organizers, the Pinkertons rousted them back to Pennsylvania, beaten bloody.

“Higgins!” shouted a foreman. “I told you to oil that winch.”

“I’m supposed to watch the derailer when the cars are coming up.”

“Do like I tell you. Oil that winch every hour.”

“Who’s going to stop a runaway if the wire breaks?”

“Get up there and oil that winch, damn you!”

Jim Higgins abandoned his post and ran two hundred yards up the steep incline to the winch engine, past the cars of coal climbing heavily to the tipple.

The tall young miner ducked his head to enter the mouth of the mine — a timber-braced portal in the side of the mountain — and descended down a sloping tunnel. He had boned up on mine engineering to prepare for the job. Strictly speaking, this tracked haulageway was not a tunnel, which by definition had to pass completely through a mountain, but an adit. Aditus, he recalled from his boarding school Latin, meant “access.” Once in, there was no way out but to turn around and go back.

Where he entered a gallery that intersected and split off from the haulageway, he hailed the small boy, who opened a wooden door to channel the air from the ventilators.

“Hey, Sammy. Feller from the telegraph office told me your Pirates beat Brooklyn yesterday. Eight-to-five.”

“Wow! Thanks for telling me, mister.”

Sammy had never been near a major-league ballpark — never been farther than ten miles from this hollow where the Gleason Company struck a rich bed of the Pittsburgh Seam that underlay Pennsylvania, West Virginia, and Ohio. But his father had been a brakeman on the B & O, until he died in a wreck, and used to bring home stories of big-city games that he would illustrate with cigarette baseball cards of famous players.

The young man slipped Sammy a colorful chromolithograph of Rochester first baseman Harry O’Hagan. In August, O’Hagan had accomplished a miracle, still on the lips of every man and boy in America — a one-man triple play.

“Bet New York’s kicking themselves for trading Harry,” he said, then asked in a lower voice, “Have you seen Roscoe?”

Roscoe was a Gleason spy disguised as a laborer.

The boy nodded in the same direction the young man was headed.

He followed the gallery, which sloped deeper into the mountain for hundreds of yards, until it stopped at the face of the seam. There he went to work as a helper, shoveling the chunks of coal picked, drilled, and dynamited from the seam by the skilled miners. He was paid forty cents for every five-ton car he loaded during twelve-hour shifts six days a week.

The air was thick with coal dust. Swirling black clouds of it dimmed the light cast by electric bulbs. The low ceiling was timbered by props and crosspieces every few feet to support the mountain of rock and soil that pressed down on the coal. The seam creaked ominously, squeezed above and below by pressure from roof and floor.

Here in the side tunnel, off the main rail track, the coal cars were pulled by mules that wore leather bonnets to protect their heads. One of the mules, a mare with the small feet and long ears that the miners believed indicated a stronger animal, suddenly stopped. Eustace McCoy, a big West Virginian who had been groaning about his red-eye hangover, cursed her and jerked her bridle. But she planted her legs and refused to budge, ears flickering at the creaking sound.

Eustace whipped off his belt and swung it to beat her with the buckle end.

The tall blond youth caught it before it traveled six inches.

“Sonny, get out of my way!” Eustace warned him.

“I’ll get her moving. It’s just something spooked her.”

Eustace, who was nearly as tall and considerably broader, balled his fist and threw a haymaker at the young man’s face.

The blow was blocked before it could connect. Eustace cursed and swung again. Two punches sprang back at him. They landed in elegant combination, too quick to follow with the eye and packed with concentrated power. Eustace fell down on the rails, the fight and anger knocked out of him.

The miners exchanged astonished glances.

“Did you see that?”

“Nope.”

“Neither did Eustace McCoy.”

The young man spoke gently to the mule and she pulled the car away. Then he helped the fallen laborer to his feet and offered his hand when Eustace acknowledged with a lopsided grin, “Ain’t been hit that hard since I borrowed my old man’s bottle. Whar’d you larn to throw that one-two?”

“Oregon,” the young man lied.

His name was Isaac Bell.

Bell was a Van Dorn Agency private detective under orders to ferret out union saboteurs. This was his first solo case, and he was supposed to be operating in deep disguise. To ensure secrecy, the mineowner hadn’t even told the company cops about his investigation. But the awe on the miners’ faces told Bell he had just made a bad mistake.

The year was 1902. Van Dorn detectives were earning a reputation as valuable men who knew their business, and the agency motto — We never give up! Never! — had begun to be muttered, remorsefully, inside the nation’s penitentiaries. Which meant that young Isaac Bell had to admit that he was very likely the only Van Dorn in the entire outfit so puddingheaded that he would ruin his disguise by showing off fancy boxing tricks.

Roscoe, the Gleason spy, was eyeing him thoughtfully. That might not matter too much. Bell reckoned he could fix that somehow. But any saboteur who caught wind of him championing a poor, dumb mule with a Yale man’s mastery of the manly art of self-defense would not stay fooled for long.

“Gangway!”

The exhausted men climbing out of the mine at the end of their shift shuffled off the tracks. The winch jerked the slack out of the wire, and twenty coal cars emerged behind them and trundled up the steep incline to the tipple. The train was almost to the top when the chain bridle that attached the wire to the front car broke with a bang as loud and sharp as a gunshot.

The train stopped abruptly.

One hundred tons of coal hung motionless for a heartbeat.

Then it started rolling backwards toward the mouth of the mine.

Jim Higgins, who was hurrying from the winch engine to his post at the derailer switch, dropped his oilcan and ran as fast as he could. But the train was gathering speed. It rolled ahead of him, and before he could reach the switch, twenty cars hurtled through it straight down the main line.

Isaac Bell charged after it. He spotted a brake lever on the last car and forged alongside, looking for handholds to jump to. The coal train accelerated and pulled ahead of him. As the last car whipped past, he leaped onto its rear coupler and caught his balance by clapping both hands around the brake lever. He threw his weight against the steel bar, slamming curved brake shoes against the spinning wheels.