Bell leaped behind the steering wheel and sent the Gray Wolf flying up the buggy track in a cloud of dust

"That's my car! You're stealing my race car!"

"I just bought it!" he fired over his shoulder. "Send the bill to Van Dorn." Although, strictly speaking, he thought with a last grim smile as he wrestled the low-slung car over the ruts gouged by freight wagons, once Van Dorn's expense sheets were submitted Osgood Hennessy would end up buying his daughter's Gray Wolf twice.

The look over his shoulder revealed that he was trailing a dust cloud as tall and dark as a locomotive's smoke. The Wrecker would see him coming miles away, a sight that would put the murderer on high alert.

Bell twisted the steering wheel. The Wolf sprang off the buggy track, up the railroad embankment, and onto the rail bed. He wrenched the wheel again to force the tires over the nearest rail. Straddling it, the Wolf pounded on the crossties and ballast. It was a bone-jarring ride, though the banging and bouncing was far more predictable than the ruts in the road. And unless he punctured a tire on a loose spike, his chances of keeping the car intact at such speed were better than on rocks and ruts. He glanced back, confirming that the chief benefit of riding on the rail bed was he was no longer trailing a dust cloud like a flag.

He raced northward on the line for a quarter of an hour.

Suddenly, he saw a column of smoke spurting upward into the hard-blue sky. The train itself was invisible, hidden around a bend in the track that appeared to pass through a wooded valley between two hills. It was much closer than he had expected on first glimpsing the smoke. He instantly steered off the track, down the embankment, and bounced into a thicket of bare shrubs. Turning the car around in the thin cover, he watched the smoke draw nearer.

The wet huffing of the locomotive grew audible over the insistent rumble of the Gray Wolf's idling motor. Soon it became a loud, smacking sound, louder and louder. Then the big black engine rounded the bend, spewing smoke and hauling a long coal tender and a string of empty gondolas and boxcars. Lightly burdened and rolling easily on the slope of a downgrade, the train was moving fast for a freight.

Bell counted fifty cars, scrutinizing each. The flatbeds looked empty. He could not tell about a couple of cattle cars. Most of the boxcars had open doors. He saw no one peering out. The last car was a faded red caboose with a windowed cupola on the roof.

The second the caboose passed by, Bell gunned the Wolf's motor and drove it out of the thicket, up the gravel embankment and onto the tracks. He fought his right-side tires over the nearest rail and opened the throttle. The Wolf tore after the train, bouncing hard on its ties. At nearly forty miles an hour, it bucked violently and swayed from side to side. Rubber squealed against steel, as the tires slammed against the rails. Bell halved the distance between him and the train. Halved it again, until he was only ten feet behind the train. Now he saw that he could not jump onto the caboose without pulling alongside the train. He slewed the car back over the rail and steered on the edge of the embankment, which was steep and narrow and studded with telegraph poles.