He nodded.

"He's the man you've got to pull up for."

"His gal on the train?"

"Sure thing."

He resumed his vigil, leaning over the side of the engine with one hand on the throttle-lever.

"All right," he said. "I stop for him. Son of a gun! If he bust my train I kill the sucker!"

I never posed as much of a diplomatist, but it seemed wise to me in the circumstances not to offer any further information or ask questions. But I was curious. It was possible that Ali Higg's brother had been given the task of running that train for the reason that no lesser luminary would have one chance in a thousand of reaching the destination.

I never found out whether my guess was right or not, and never left off rating that engine-driver in any case as one of the world's heroes. I've a notion there is a book that might be written about him and his train.

A polished black dot in the distance soon increased into the flattened egg-shaped rock, and then we saw Grim standing on the track with all his men.

That is the safest place to stop a train from, because you avoid a broadside from the car-windows. True to his word the driver came to a standstill, and Grim came up to speak with him just as I jumped off. I waited, expecting to see a contretemps.