The sweat broke over him as he turned and twisted. The grip of the frog seemed to stifle him; half the time was gone; the near truck wheels screeched two car-lengths away: and the switchman played his last card. Time and time again Shockley had told him what to do if that moment came in the night; had told him to throw his lamp in the air like a rocket. But Chris had forgotten all that till the flat dropped heavily on the tongue in front of him; then he threw his lamp like a rocket high into the night.

No help came. He raised his arms frantically above his head, and his cries cut the wind. Desperate at last, he threw himself flat to lie outside the rail, to save all but a foot; but the frog held him, and crying horribly he struggled back to his feet, only to sink again half crazy to the ground. As his senses left him he was hardly aware of a stinging pain in his foot, of a wrench at his leg, an instant arm round his back, and his yard master's voice in his ear.

"Jump!" screamed Shockley.

Chris, scrambling frantically on the deadly rails, unable to jump, felt himself picked from the ground, heard a choke in the throat at his ear, and he was flung like a drawbar through the dark. Shockley had passed a knife blade from vamp to sole, slit the Russian's clumsy shoe, jerked his foot from it, and thrown him bodily into the clear.

Chris staggered panting to his feet. Already the steel was moving slowly over the switch; he heard the sullen pounding of the trucks on the contact; a lantern, burning yet, lay on its side near the stand—it was Shockley's lamp. Chris looked wildly around for his yard master; called out; called Shockley's name; listened. No scream, no groan, no cry, no answer; no sound, but just the steady pounding of the wheels over the contact. The little switchman screamed again in a frenzy, and turning, raced stumbling up the track to the cab. He swung into it, and by signs made the engineer shut off. He tried to talk, and only stammered a lingo of switch-pidgin and the name of Shockley. They couldn't understand it all, but they shut off with faces pinched and sallow, threw open the furnace door, and grabbing their lanterns ran back. The fireman on his knees held his lamp out under the flat that spanned the contact; he drew shrinking back, and rising, started on the run for the depot to rouse Callahan.

It was Callahan who pulled the pin a moment later, Chris shivering like a rabbit at his side. It was Callahan who gave the slow pull-ahead order that cut the train in two at the frog, and Callahan who stepped wavering from the gap that opened behind the receding flat—back from something between the rails—back to put his hands blindly out for the target-rod, and unsteadily upon it. He heard Shockley breathing.

Some carried the headlight back, and some tore the door off a box car, and they got him on. They carried him unevenly, stumbling, over to the depot. They laid him on Callahan's mattress in the waiting room, and the men stood all about him; but the only sound was his breathing, and inside under the lamp the receiver, clicking, clicking, clicking, of Bucks and the company surgeon coming on a special ahead of Fifty-nine.

They twisted tourniquets into his quivering flesh, and with the light dying in his eyes they put whiskey to his lips. But he turned his head and spit it from his mouth. Then he looked from face to face about him—to the engineer and to the fireman, and to little Chris and to Callahan, and his lips moved.

Chris bent over him, but try as he would he could not catch the words. And Callahan listened and watched and waited.

"Block—block—" said Shockley's lips. And Callahan wiped them slowly and bent close again and put his ear over them. "Block—block—the—frogs."