ment's warning. Under ordinary circumstances, a train thus sidetracked would be under notified control and run down the siding only a short distance. Going at high speed, however, and with a full head of steam on, Ralph realized that, long as the siding was, he would have to work quick and hard to check down the big locomotive before she slid the limit, and stuck her nose deep into the sand hill that blocked the terminus of the rails.
It was quite dark now. The lights of the station flashed by. Both hands in use to check the locomotive and set the air brakes, Ralph leaned slightly from the cab window and peered ahead.
"Shoot the sand!" he cried, almost mechanically.
It was a good thing that the cab passenger was aboard and knew something about the cab equipment. Young Clark reached the side of the engineer's seat in a nimble spring. His hand located the sand valve without hesitancy.
Ralph uttered a short, sharp gasp. That look ahead had scared him. He was doing all he could to slow down, and was doing magnificently, for the reverse action moved to a charm. Still, he saw that after dashing fully two hundred yards down the siding, the natural momentum
