But strangely it was not. It hung from the dangling cable spinning lazily until Riley stepped in to check its motion.

There was a check valve in the bottom—a door that opened inwardly, to take in water and fragments of rock when need arose. Riley, disregarding the possible heat of the twirling bailer, reached for it with bare hands. He drew them back, then held them before him—and a hundred watching eyes saw what had been unseen before: the slow dropping of red liquid from the bailer's end. The same drops were falling from Riley's hands that had touched that end.

"Blood!" The word came from the foreman's throat in one horrified gasp. It ran in a whispering echo from one to another of the watching crew. From far across the hot sands came the rattle of a truck that brought the first of many loads of cement and steel for Rawson's buildings. Its driver was singing lustily:

"Hark to what I say:
You're pokin' through the crust of hell
And braggin' too damn loud of it,
For, when you get to hell, you'll find
The devil there to pay!"

But Rawson, looking dazedly into Smithy's eyes, said only: "It's cold—the bailer's cold. There's no heat there."


CHAPTER IV

The Light in the Crater

f course it wasn't blood!" said Smithy explosively. "But try to tell the men that. See how far you get. 'Devils!' That's been their talk since yesterday when Riley got smeared up—and now that the bailer's gone we can't prove a thing."